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: Ic5d40b4a1e7c77ca3be9175247f87c2006b529bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>