Merge "Update the sign-in title variants." into udc-dev am: 6dd8509243 am: e18cee8cd5 am: 624ffd65eb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23018646

Change-Id: I9eecc020268bb795d11617778105e67f4166cc6c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>