Merge "Allow I/O wallpaper to use dark text mode." into sc-dev am: 284edfdc am: 92b584d5 am: 484da92b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14467777

Change-Id: Ie66ee111b7f646f488d96b4e32eefd22a5b853db