Merge "Add a delay before turning the screen off" into stage-aosp-sc-ts-dev am: a1b832cd6e am: 9be28912a6 am: 5d0dea3915

Original change: https://googleplex-android-review.googlesource.com/c/platform/cts/+/15686074

Change-Id: I7b3d487b69ecfd6bd482428420a95dfab01b48ac