Merge "audio: Make StreamDescriptor::Command a union" am: 2b68543625 am: 224a3b1755

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2296167

Change-Id: I29a46c3c67df1311d9e1d9ed88e2b85b2de16f45
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>