Summary:
Without allowing Native Responder on Android, ListView get's Deadlocked while trying to scroll. This happens as soon as a PanResponder fires.
This Commit prevents this Issue and the iOS Optimization for Locking / Unlocking Listview Scrolls does a good job on Android too. So there's no need to prevent the Native Responder.
**Test plan (required)**
Compile on Android in Production Mode and try to scroll before and after this change.
Closes https://github.com/facebook/react-native/pull/8556
Differential Revision: D4438057
Pulled By: hramos
fbshipit-source-id: 05f3b7e6b4e49f5c941c7e1ce72c8bf6d66a9a28