Merge "Add sensor for flip to screen off. See go/flip-to-screen-off-design-doc...

Merge "Add sensor for flip to screen off. See go/flip-to-screen-off-design-doc for design details." into sc-dev am: 3da8947a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13661645

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I9a57baf3568e03a94010266b89f691687a8dd9dd