Merge "Revert "Hide keyguard earlier when exiting lockscreen"" into udc-dev...

Merge "Revert "Hide keyguard earlier when exiting lockscreen"" into udc-dev am: 87e28c1f am: 3ff760fb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23521159



Change-Id: I4343ece1387e91c8ea545d5969d1912c03b7239f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>