Merge "Ignore implicit high priority for 'hide silent notifs on lockscreen'"...

Merge "Ignore implicit high priority for 'hide silent notifs on lockscreen'" into udc-dev am: 72ccb6ee am: 9a8ff9a8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23690408



Change-Id: Icdd0dcefc075caff80763b2ac799e176ed812af1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>