Merge "Set FLAG_IS_ACCESSIBILITY_EVENT for events injected from accessibility" into sc-dev am: 61cfde719b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15019654

Change-Id: I8dae253b5b0a54beb9696d3e6e2395be6b3a08e6