Merge "Hide the stop button for the device admin app in the task manager" into tm-dev am: d62d63b2 am: 5da11cba

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18567918



Change-Id: Ida88e7d86ebabe3f6a0f68ad62ea5b1dd52696f9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>