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

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

Change-Id: If3cddb7af79fdf4f94b3f2120a2ba12b70266827
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>