Merge "Move loading policy engine from DPMS constructor to #systemReady" into udc-qpr-dev am: 5398b47901

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24680108

Change-Id: Idee30b765c6b5828b43b01513a778b4a3d675095
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>