Merge changes I3200e32e,I9ac3db0c,I5530dfe4,I317e2cbc,I501a5956, ...

* changes:
  AudioAidlLegacyConversionTest: Added test for Aidl2Legacy2Aidl.
  AudioAidlLegacyConversionTest: Added test for Aidl2Legacy2Aidl.
  Updates to audiotrack tests
  Update AudioEffect callers to new interface
  Add tests to libaudioclient pre- and post-submit
  Remove legacy callback interfaces
  Update audiorecord tests
  Skip test if chosen effect is not available on device
  Add audio routing tests
  Add unit tests for trackPlayerBase
  Add serialization tests for libaudioclient
  Add audioeffect unit tests
  Add audiotrack unit tests
  Add audiorecord unit tests
  Enable clang format hook for media/libaudioclient/tests