[automerger skipped] Merge "Revert "On device lockdown, always show the keyguard"" into rvc-dev am: ba7a30e9f1 am: 4f8e0db44f am: af9de2e62c am: 8efa785f9b -s ours am: be822171e8 -s ours am: 99a7448b5b -s ours

am skip reason: Merged-In Ida8f2ab5e4ac79b38c21ba7bacfe9c374c9cc600 with SHA-1 996896e672 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24761005

Change-Id: Ic5beb18ec273d55404e8e75de2df4110778a9842
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>