Merge "Do not allow setting notification access across users." into udc-dev am: 0e1af05715 am: dd21aad13c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25096530

Change-Id: If3ed0f73991e03429b272b783c29c4d09f25b1d3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>