Merge "Cache NotifCollection for next pipeline run" into udc-dev am: c2384f8b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22119329



Change-Id: Id53d69e0e9e076286c4d01ef91552e0b3052fa0f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>