Spatializer: return supportedChannelLayout as part of parameter am: 759c9cb28b

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2977815

Change-Id: Iba2078f7781bbe1b54771c955ca927cd57fdc6b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>