fix: getModel() on iOS was always returning generics
fix: getModel() on iOS was always returning generics

Fixes #836

rebeccahughes/react-native-device-info,rebeccahughes/react-native-device-info,rebeccahughes/react-native-device-info,rebeccahughes/react-native-device-info,rebeccahughes/react-native-device-info,rebeccahughes/react-native-device-info