Merge "Add settings observing for vibrate icon to Keyguard" into tm-dev am: 25402935

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18602315



Change-Id: Ic47b95ceaa4615e403fc6f340d51841ae7256065
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>