Swap to CarAudioService#setIsAudioEnabled

Replaced CarAudioService#enableAudio/disableAudio with

Bug: 176258537
Test: Disable audio and then check for focus
`adb shell cmd car_service define-power-policy audio_off --disable AUDIO`
`adb shell cmd car_service define-power-policy audio_on --enable AUDIO`
`adb shell cmd car_service apply-power-policy audio_off`
to disable audio. Then checked `adb shell dumpsys car_service --services
CarAudioService` to verify focus has been abandoned and is restricted

Change-Id: I8517a8e901b9ae90f7c4316090a466dae82218f9
3 files changed
tree: 1dc151f6f0aea47bf4d88259a74ffd29cb40c0c6
  1. car-admin-ui-lib/
  2. car-internal-lib/
  3. car-lib/
  4. car-maps-placeholder/
  5. car-systemtest-lib/
  6. car-test-lib/
  7. car-usb-handler/
  8. car_product/
  9. cpp/
  10. data/
  11. experimental/
  12. FrameworkPackageStubs/
  13. obd2-lib/
  14. packages/
  15. procfs-inspector/
  16. service/
  17. tests/
  18. tools/
  19. user/
  20. vehicle-hal-support-lib/
  21. .clang-format
  22. .gitignore
  23. Android.mk
  24. CleanSpec.mk
  25. CPPLINT.cfg
  26. OWNERS
  27. PREUPLOAD.cfg
  28. README.md
  29. TEST_MAPPING
README.md

Native (C++) code format is required to be compatible with .clang-format file. Run

git clang-format --style=file --extension='h,cpp,cc' HEAD~

Note that clang-format is not desirable for Android java files. Therefore the command line above is limited to specific extensions.