Merge "SpdifStreamOut: override getAudioProperties()" into main am: b78d96b008

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2825711

Change-Id: Ia008f7bc7ce35e81c4cf542d8a8dc7b12abd69fc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>