Introduce countryCode Modem3gpp API
Get two-letter country codes defined in ISO 3166-1 alpha-2. The logic ported from the Qt wrapper for ofono from Jolla's Sailfish OS: https://github.com/sailfishos/libqofono
Get two-letter country codes defined in ISO 3166-1 alpha-2. The logic ported from the Qt wrapper for ofono from Jolla's Sailfish OS: https://github.com/sailfishos/libqofono