VoipCallMonitor updates; stopFGS when notifs are removed am: 1feb0f28 am:...

VoipCallMonitor updates; stopFGS when notifs are removed am: 1feb0f28 am: 9331e6ad am: 495a5130

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/23619482



Change-Id: I521b6bdff9dbcf7a4a01c830c250e9e0afd88080
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>