Update setup.md - adding playServicesLocationVersion

[Bilal-Abdeen]

The setup instructions suggest adding googlePlayServicesVersion, playServicesVersion or playServicesLocationVersion to the android/build.gradle file.
Only using the last one playServicesLocationVersion works. The other 2 throw dependency errors.

Summary

1. I updated the version numbers referenced in the setup instructions for the android/build.gradle file.
2. Adding googlePlayServicesVersion or playServicesVersion throws an error while using playServicesLocationVersion works.

#398

Test Plan

I tried using googlePlayServicesVersion and using playServicesVersion. In both scenarios, building the app (by executing npx react-native run-android) throws an error regarding dependencies. I used playServicesLocationVersion. The app was built successfully, and the current location was picked correctly.