V4L2 controls fixup

[xzhangxa]

• No laser controls for color sensor;
• Set control values to their default when initialization;
• Follow doc, default manual laser power value changed from 240 to 150;
• No any control for IMU.

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The issue that this PR tries to solve:

• When D457 first power up, some values reading from FW are not the same as their default values in doc
  • Color sensor's exposure_time_absolute is 0, though in document min is 1 and default is 1660. (maybe because auto_exposure is on so this is irrelevant, though depth sensor's exposure_time_absolute is at the default 330 and auto_exposure is on too)
  • Color sensor's analogue_gain is 0, not the default 64.
  • Manual laser power value is 150, not default 240.
• Without power off, the control values will be consistent from boot to boot, so if the user changed some control value once, and at next boot the v4l2 interface will still show the default value, not the real value in FW.

[xzhangxa]

• Update manual laser power value default from 240 to 150, according to email exchange.
• Update PR target branch to master.

[xzhangxa]

Leave only control changes only, move HWMC changes to another PR. @ev-mp