[automerger skipped] Add transition on keyguard showing am: e778719e -s ours

am skip reason: Merged-In I80313281219fd6b42fe3dffffde2ef90086b0e59 with SHA-1 f5ec5ef1 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26905599



Change-Id: Id4d6b7f7e6032bb28e1e05739b10de68efed9c03
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>