NativeGoogleMapFragment: Setting location enabled and denying permissions leads to inconsistent state

[pablitoarango]

https://github.com/airbnb/AirMapView/blob/master/library/src/main/java/com/airbnb/android/airmapview/NativeGoogleMapFragment.java#L269

Setting location enabled here sets the global variable myLocationEnabled to true but if permissions are rejected the googleMap's location is never enabled. Trying to set the location enabled at a later point calling setMylocationEnabled(true) will no longer do anything unless you disable the location that was never enabled.

[felipecsl]

Fixed via #93