Merge "Add cake background to upcoming birthday status" into sc-dev am: 227707f1 am: e4532ec2 am: d657dd30

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15118518

Change-Id: I8ba4cda238bafacdb71aa23ff57c4b5173630afc