Merge "Merge "Enable dimming for mid-range luminance wallpapeprs." into sc-dev...

Merge "Merge "Enable dimming for mid-range luminance wallpapeprs." into sc-dev am: 4bb78410 am: 72adb9d0" into sc-v2-dev-plus-aosp am: 7b8848b2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14881020

Change-Id: Iad92a6bf2f9c0dfdb22b2246b2623d1ae046b6c9