Merge "audio VTS: Limit mix ports that route to attached devices" am: 2e6d97a4e8 am: efdbd91b76 am: 21d5a0ef38

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2389655

Change-Id: I4f48800165ac37517e8c0994df2f1526b9e27f49
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>