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 am: 2ae3945a am: 8f9a8308

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



Change-Id: I9d3eeaf21759fe50858fddb935c4fe852ab0fda7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>