Merge "Change Boolean to Sysprop flag for Shade anim work" into tm-qpr-dev am: 498f1e905c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21170735

Change-Id: I4ac098a64c5dffd2695b58cefabb03453259eba4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>