Merge "Set FLAG_IS_ACCESSIBILITY_EVENT for events injected from accessibility" into sc-dev am: 61cfde719b am: 1e15906653

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

Change-Id: Iba2cea16c808097d222538bfb52e193bfb5759b0