Update AOSP DialerPrebuilt am: 7ef70607b4 am: 5eba4de5e8 am: 51cb55b77a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/DialerPrebuilt/+/23784421

Change-Id: Ib79e9585b89668b1159c0613f8ae7078bf31dcd6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>