Merge "Add entry point for adaptive brightness settings" am: d3d24b65ac am: f7836dd7bc am: bd105d62e0

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/1698500

Change-Id: I2a2c8d7828b07e519ecb2736f9c1d5d0940fea24