Merge "audio: Accept I/O handle for mix ports from the client" am: 2f891b99

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



Change-Id: I53c2d427480dba61490f020f52a62ffc65508d5f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>