[LE Audio] Only add main device for LE Audio devices in Take call on
list

Bug: 254212589
Test: manual test
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AudioOutputSwitchPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=HandsFreeProfileOutputPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=MediaOutputPreferenceControllerTest
Change-Id: I7831f12ca259aac3d60f4370ffc659a32fed3296
4 files changed