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: d134bece am: c4200b03

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



Change-Id: I5dbbc481db89de2b56de5cdbb3fd195a19edd265
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>