Merge "Reuse ImageButton in control bar if it exists" into rvc-qpr-dev am: ebfc2570b9 am: 2e5b78e55c am: 80aa0534b9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/libs/+/12475434

Change-Id: I5191d1a107bc8e000c79cda4320935d01ea37c34