[DO NOT MERGE] Fix incorrect order of Accessibility events

The Accessibility events order for gesture end and touch interaction
end are exchanged in following conditons:
1. touching duration is very short.
2. Hover exit events comes right away after receving
action_up.
It leads to incorrect state of touchExplorer and sending incorrect
hoverevent in next touch-interaction.

Bug: 150171638
Test: atest FrameworksServicesTests:com.android.server.accessibility.gestures
Test: atest android.accessibilityservice.cts.TouchExplorerTest
Test: manual test
Change-Id: Ia60d51414dd63a2a30be61372e8fbd2e3d9f723f