Audio AIDL : Add default value to params am: d7c6f32d am: 3dda942a am: b96986fb

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2370616



Change-Id: I8e49bea27c81d867baec5f168322483215541050
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>