Merge "Optimize imports in AppNotificationSettings" into udc-dev am: ec12caad am: b34c993a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/22897912



Change-Id: Ia92f1d9a2c35eb03c06d787b153bbb93774e57d6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>