Update AOSP MessengerPrebuilt am: c588137789 am: b1a7aaa237

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/MessengerPrebuilt/+/23784312

Change-Id: I1ebe258c70ce837db7b13614a760844a87dc4584
Signed-off-by: Automerger Merge Worker <[email protected]>
tree: 9660d65e5eba359c911ac5332827dd2a4a672edf
  1. Android.bp
  2. CarMessengerApp.apk
  3. OWNERS
  4. ReadMe.txt
  5. update_prebuilt.sh