RESTRICT AUTOMERGE Prevent non-admin users from deleting system apps. am: a7621e0ce0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17400663

Change-Id: I7be9a10eaa67ba96c3ef905fbb3a88b3ce6d44b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>