[automerger skipped] Implement RCS single registration metrics am: e8891f3b am: 96f45a86 -s ours

am skip reason: Merged-In I624b742a61652f5d3194a5da0033b6c2ef5fd0ff with SHA-1 66bbb261 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/16262961

Change-Id: I716fb76c7eb57c077f3660922db7de4d24d2b4f5