Update Mapbox to 5.3.1.
Update Mapbox to 5.3.1.

https://github.com/mapbox/mapbox-gl-native/releases/tag/android-v5.3.1

Change-Id: I25f7d100f3adf608d0adef7f62352c270e841639

dbrant/apps-android-wikipedia,dbrant/apps-android-wikipedia,wikimedia/apps-android-wikipedia,dbrant/apps-android-wikipedia,wikimedia/apps-android-wikipedia,dbrant/apps-android-wikipedia,wikimedia/apps-android-wikipedia,wikimedia/apps-android-wikipedia,dbrant/apps-android-wikipedia