Merge "Add device policy manager namespace to public namespaces" into tm-dev...

Merge "Add device policy manager namespace to public namespaces" into tm-dev am: 8293974f am: c783dba6 am: d3fb133b am: 5c3c8c0a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18344246



Change-Id: If7b20da5bdd5dca77b0e59699f6c3ef497a01299
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>