Fix a RegCreateKeyExW call which was always failing in INetCfgComponentControl_fnApplyRegistryChanges

if (RegCreateKeyExW(hKey, L"SYSTEM\\CurrentControlSet\\Services\\Tcpip
Parameters", 0, NULL, 0, KEY_WRITE, NULL, &hKey, NULL) == ERROR_SUCCESS)

hKey is unitialized at that moment, we should be using instead HKEY_LOCAL_MACHINE