Merge "Add notif. and foreground service to transactional test app" into udc-dev am: 94990ef8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/22636949



Change-Id: I52eadfec0febea25591d064acf1ad1a2281e6763
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>