Moves car_audio_configuration.xml out of CarService package

Allows OEM to overlay the configuration in

- /vendor/etc/ (recommended)
- /system/etc/

respectively (CarAudioService reads from the first hit only)

Bug: 121273516
Test: adb shell dumpsys car_service | grep -A72 CarAudioService
Change-Id: Iea3702a9767f412f0597846832283e89d733e13f
4 files changed