Merge "audio: Accept I/O handle for mix ports from the client" am: 2f891b99 am: 2ce2f9a9 am: 16e908f2 am: b6d20b9c am: e1d80ce4

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2449964



Change-Id: Ic7ed6a50758dbada7c92466a8684e1e0e8cc42d0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>