chore(eagleye): add septentrio msg option in eagleye_config

Description

From today, Eagleye has been applicable to septentrio_gnss_driver/PVTGeodetic type topic messages as a velocity source. https://github.com/MapIV/eagleye/pull/334

So, I wrote that down to the comment in eagleye_config.param.yaml file.

Tests performed

I've tested this against a driving data that uses septentrio GNSS sensors by setting the velocity_source_type to 4, and confirmed that the latest Eagleye works well with this. [INTERNAL_LINK(TIER IV)]

Effects on system behavior

You can use septentrio_gnss_driver/PVTGeodetic type messages to give ENU velocity to Eagleye.

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autowarefoundation / autoware_launch