Merge "Add StylusSystemUpdateNotifier" into tm-qpr-dev am: de15767636 am: a5c6a1f9a4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20496145

Change-Id: I34a84feafb31013346d27ccce8b714a97c22e01b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>