Merge "Set FLAG_IS_ACCESSIBILITY_EVENT for events injected from accessibility" into sc-dev am: 61cfde719b am: 5107ce6122 am: b0cf9752b5

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

Change-Id: I3c2ca82682eb82c931305f8a775616b1f26bda32