Merge "Adding OWNERS to assets of device policy tests" am: 89cbac790c am: bdb4be158c am: 3561e4ace9

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1622429

Change-Id: I9f3a77e56e425f5f06f1a82ba20138df9b00c451