Merge "audio: Accept I/O handle for mix ports from the client" am: 2f891b991e am: 2ce2f9a909 am: 16e908f283

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

Change-Id: I3e47f351acc60ca03b1ff4dfef86404c9c74c766
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>