audio HAL: Initial AIDL interfaces am: bd4013f179

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2190586

Change-Id: I496f775bded875c9b7f0ad6ad05158164ca0b8e2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>