Merge "audio VTS: Limit mix ports that route to attached devices" am: 2e6d97a4

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



Change-Id: I5affb17237d46e9fc6e6aea3d0645e814c174ee4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>