Merge "CallAudioRouteController: fix possible  null pointer dereference in onAvailableRoutesChanged()" into main am: ca434bbcc5 am: f8f254873d

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telecomm/+/3274171

Change-Id: I8e772d736b403a0a70603a56d7553b256e217bf9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>