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: 8a9705b0 am: 31207964 am: 37658ec4

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



Change-Id: I00d861155c236b5007d476198a88c14bc257fcf8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>