Merge "Listen to phone based signalStrength changed" into udc-qpr-dev am: 5a54125e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/23834878



Change-Id: I7a082ea681c300c33be113ed40f28c89dc7b0eeb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>