Merge "Audio AIDL : Add placeholder implementation and VTS test case for AGC1" am: adce82f9

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2437832



Change-Id: I2f61afc1e38f0be8e35d817215048b9e061403e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>