audio HAL: Initial AIDL interfaces am: bd4013f1 am: cf54f19d am: e2ec1b9f am: 23890bc3

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



Change-Id: Id648458d9109f3bc0a270129cfe381f385667571
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>