Merge "Send error if enroll is invoked when face is already enrolled" into udc-dev am: 78ae4649

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22651490



Change-Id: I7c36a0583a790741e5ac8513397a722c5fa93f6a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>