Merge "Allow enabling and disable car mode from the shell." into tm-dev am:...

Merge "Allow enabling and disable car mode from the shell." into tm-dev am: 1fbb452d am: 03059f47

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18600317



Change-Id: Iee2cb173ee4a22b7ec367521f3f5f259dc688d10
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>