RESTRICT AUTOMERGE Add namespace for DevicePolicyManager P/H experiments am: f90b1ac98d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18164349

Change-Id: I27d4c71793ee5fb5f946473524063ca4ffb3aef9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>