Merge "Prevent uninstalling the device management role" into tm-qpr-dev am: 2c11df7f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20691226



Change-Id: I8668e884169aafeae7d6be87dbc4646e38a343ca
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>