Handle disconnection and connection for LE Audio devices am: ce6bef58cb

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telecomm/+/2084211

Change-Id: I070e4ef71b381cf1253f50362810c5270f97e9a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>