Update AOSP DialerPrebuilt am: 7ef70607b4 am: 5eba4de5e8

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

Change-Id: I9c9df7b5c268744db0482f699d8888559d303fbd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>