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

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



Change-Id: I354219bcd22da7bfc4eb9e876eb8efe6cf58dfc1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>