Merge "Update docs for PROPERTY_COMPAT_ALLOW_USER_ASPECT_RATIO_FULLSCREEN_OVERRIDE" into udc-qpr-dev am: ed5b3bdcd5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24404414

Change-Id: I60bba5d64faae22ac1c1f5163691fa7b34d1507e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>