Add README with details about the status of support for this app am: 1ad2e463ee am: 89605f2484

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Car/systemlibs/+/3319395

Change-Id: I59793863dca7bf7239ef38e5ed3c015f05ced107
Signed-off-by: Automerger Merge Worker <[email protected]>