Windows: QNetworkInterface::name() returns an empty string

Windows: QNetworkInterface::name() returns an empty string. This is because it is unable to match the interface when going via QNetworkConfiguration::name().

What happens is that when the scan occurs it does this via interfaceListingWinXP() in qnetworkinterface_win.cpp and this will get the index and the adapter name. However, the active configuration's identifier is a GUID which is coming from QNativeWifiEngine::getInterfaceFromId() so it never matches up.