Mark all devices as inactive source when previous active source is unknown

This PR makes sure all the devices known by libcec are marked as inactive when the active device changes and libcec does not manage the newly active device.

When switching to a new active device, the CCECBusDevice::SetStreamPath() method can accept a second argument which is supposed to be the address of the previously active device. However, this argument seems to never be passed in libcec, so it is always set to the default value CEC_INVALID_PHYSICAL_ADDRESS. In this case, the previously active device is not found, and then, the previously active device is still active from libcec point of view if the newly active device is not managed by libcec. This is an issue, especially when the TV requests the active source device afterwards, because libcec will send the address of the active device it believes is active, while this device is not active anymore.

An example issue can be seen in the following log, where the active device is changed from 2000 (kodi) to 1000 (another device), then the TV if powered off and finally on. When the TV is powered on, the input source changes to 2000, because libcec answers to the active source request while it should not.

Kodi CEC debug log

``` -- Changing input source on TV 2022-09-08 01:03:37.918 T:2600083648 DEBUG: CecLogMessage - >> 0f:80:20:00:10:00 2022-09-08 01:03:37.918 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): routing change (80) 2022-09-08 01:03:38.258 T:2600083648 DEBUG: CecLogMessage - >> 0f:86:10:00 2022-09-08 01:03:38.258 T:2600083648 DEBUG: CecLogMessage - >> TV (0) sets stream path to physical address 1000 2022-09-08 01:03:38.258 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): set stream path (86) -- Powering TV off 2022-09-08 01:03:51.141 T:2600083648 DEBUG: CecLogMessage - >> 0f:36 2022-09-08 01:03:51.141 T:2600083648 DEBUG: CecLogMessage - TV (0): power status changed from 'on' to 'standby' 2022-09-08 01:03:51.141 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): standby (36) -- Powering TV on 2022-09-08 01:03:58.389 T:2600083648 DEBUG: CecLogMessage - >> 0f:85 2022-09-08 01:03:58.389 T:2600083648 DEBUG: CecLogMessage - >> 0 requests active source 2022-09-08 01:03:58.390 T:2600083648 DEBUG: CecLogMessage - TV (0): power status changed from 'standby' to 'on' 2022-09-08 01:03:58.390 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> broadcast (F): active source (2000) 2022-09-08 01:03:58.390 T:2600083648 DEBUG: CecLogMessage - << 1f:82:20:00 2022-09-08 01:03:58.390 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): request active source (85) 2022-09-08 01:03:59.147 T:2600083648 DEBUG: CecLogMessage - >> 0f:80:10:00:20:00 2022-09-08 01:03:59.147 T:2600083648 DEBUG: CecLogMessage - Recorder 1 (1) was already marked as active source 2022-09-08 01:03:59.147 T:2600083648 DEBUG: CecLogMessage - >> source activated: Recorder 1 (1) 2022-09-08 01:03:59.147 T:2600083648 DEBUG: CecLogMessage - sending active source message for 'Recorder 1' 2022-09-08 01:03:59.148 T:2600083648 DEBUG: CecLogMessage - << powering on 'TV' (0) 2022-09-08 01:03:59.148 T:2600083648 DEBUG: CecLogMessage - << 10:04 2022-09-08 01:03:59.148 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): routing change (80) 2022-09-08 01:03:59.237 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> broadcast (F): active source (2000) 2022-09-08 01:03:59.238 T:2600083648 DEBUG: CecLogMessage - << 1f:82:20:00 2022-09-08 01:03:59.358 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> TV (0): menu state 'activated' 2022-09-08 01:03:59.358 T:2600083648 DEBUG: CecLogMessage - 'menu status' is marked as unsupported feature for device 'TV' 2022-09-08 01:03:59.444 T:2600083648 DEBUG: CecLogMessage - >> 0f:86:20:00 2022-09-08 01:03:59.445 T:2600083648 DEBUG: CecLogMessage - >> TV (0) sets stream path to physical address 2000 2022-09-08 01:03:59.445 T:2600083648 DEBUG: CecLogMessage - Recorder 1 (1) was already marked as active source 2022-09-08 01:03:59.445 T:2600083648 DEBUG: CecLogMessage - >> source activated: Recorder 1 (1) 2022-09-08 01:03:59.445 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> broadcast (F): active source (2000) 2022-09-08 01:03:59.446 T:2600083648 DEBUG: CecLogMessage - << 1f:82:20:00 2022-09-08 01:03:59.446 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): set stream path (86) 2022-09-08 01:04:00.001 T:2600083648 DEBUG: CecLogMessage - GetPhysicalAddress - physical address = 2000 2022-09-08 01:04:05.129 T:2600083648 DEBUG: CecLogMessage - >> 01:83 2022-09-08 01:04:05.130 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> broadcast (F): physical address 2000 2022-09-08 01:04:05.130 T:2600083648 DEBUG: CecLogMessage - << 1f:84:20:00:01 2022-09-08 01:04:05.130 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Recorder 1 (1): give physical address (83) 2022-09-08 01:04:06.565 T:2600083648 DEBUG: CecLogMessage - >> 0f:87:08:00:1f 2022-09-08 01:04:06.565 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> Broadcast (F): vendor id Pulse Eight (1582) 2022-09-08 01:04:06.566 T:2600083648 DEBUG: CecLogMessage - << 1f:87:00:15:82 2022-09-08 01:04:06.566 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Broadcast (F): device vendor id (87) 2022-09-08 01:04:06.764 T:2600083648 DEBUG: CecLogMessage - >> 01:8c 2022-09-08 01:04:06.764 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> TV (0): vendor id Pulse Eight (1582) 2022-09-08 01:04:06.764 T:2600083648 DEBUG: CecLogMessage - << 1f:87:00:15:82 2022-09-08 01:04:06.764 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Recorder 1 (1): give device vendor id (8C) 2022-09-08 01:04:06.962 T:2600083648 DEBUG: CecLogMessage - >> 01:46 2022-09-08 01:04:06.962 T:2600083648 DEBUG: CecLogMessage - << Recorder 1 (1) -> TV (0): OSD name 'Kodi' 2022-09-08 01:04:06.963 T:2600083648 DEBUG: CecLogMessage - << 10:47:4b:6f:64:69 2022-09-08 01:04:06.963 T:2600083648 DEBUG: CecLogMessage - >> TV (0) -> Recorder 1 (1): give osd name (46) ```

On a side note, the second argument to CCECBusDevice::SetStreamPath() is not part of the related CEC message, so it is unclear why it exists at all. It only seems to exist for the "Routing Change" message, so there is probably a mistake here.

Pulse-Eight / libcec

Mark all devices as inactive source when previous active source is unknown #610