Merge "[Keyguard] Fix unlock animation for occluded LS." into tm-qpr-dev am: 4f58e03616 am: d5abe8d3b8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19211093

Change-Id: Ib8ca4f8cd5a12f87a89ed6aab3b84d4522ae42ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>