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

Merge "Revert "Add elevation to dream home controls button."" into udc-dev am: 37b8ca63 am: 296db227 am: 6ee0ca29

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23089776



Change-Id: I37692ef749614b6b20d36525832363f17d9c763a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>