Merge "Notify link status changed on connected or disconnected only" into...

Merge "Notify link status changed on connected or disconnected only" into udc-dev am: 968ac705 am: 937d1c5c am: a5304e85

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/22920294



Change-Id: I62c9d0d207dc8eeea34324560f5f234224d54363
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>