Merge "Add elevation to dream home controls button." into udc-dev am:...

Merge "Add elevation to dream home controls button." into udc-dev am: 22490466 am: 158d6e40 am: 02cc4183

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23003559



Change-Id: I384e7c925880524ad2bb6c58e36ca176c80babfb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>