Merge "Set FLAG_IS_ACCESSIBILITY_EVENT for events injected from accessibility" into sc-dev am: 61cfde719b am: 1e7186ae15

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

Change-Id: Ib36653bfd291caaa453b097645c9a6d239317555