Add tests to libaudioclient pre- and post-submit

Add the following test to libaudioclient presubmit:
  audio_aidl_status_tests

Add the following test to libaudioclient postsubmit:
  audiorecord_tests
  audioeffect_tests
  audiorouting_tests
  audioclient_serialization_tests
  trackplayerbase_tests
The plan is to observe their stability in postsubmit,
then move to presubmit.

Bug: 215776959
Bug: 215781480
Bug: 215781479
Bug: 229419249
Bug: 215794102
Test: atest audio_aidl_status_tests
Test: atest audiorecord_tests
Test: atest audioeffect_tests
Test: atest audiorouting_tests
Test: atest audioclient_serialization_tests
Test: atest trackplayerbase_tests
Merged-In: I501a59566ce805f35895a4743139a642216022e3
Change-Id: I501a59566ce805f35895a4743139a642216022e3