Fix usage of navigator.geolocation.getCurrentPosition is null
Fix usage of navigator.geolocation.getCurrentPosition is null

Fix usage of navigator.geolocation.getCurrentPosition is null

When use react-native-service-location like
```js
navigator.geolocation = require('react-native-geolocation-service');
```

When use this library it comes in `default` property. 
`navigator.geolocation.getCurrentLocation` is undefined but `navigator.geolocation.default.getCurrentLocation` is currently defined.
FaridSafi/react-native-google-places-autocomplete