Merge "Bring back Keyguard CANNED_UNLOCK_START_DELAY wait" into udc-dev am: c42b01e3e2 am: cbc30ad229

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23377876

Change-Id: Id1490ea548dbac9aebdea548ce840d1e15fe9af4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>