staging: rtl8712: use octal permissions

Using octal permissions instead of symbolic ones is preferred.
Signed-off-by: Aleksey Kurbatov <alkbt@yandex.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/os_intfs.c

@@ -93,7 +93,7 @@ static char *initmac;
  */
 static int wifi_test;
 
-module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO | S_IWUSR);
+module_param_string(ifname, ifname, sizeof(ifname), 0644);
 module_param(wifi_test, int, 0644);
 module_param(initmac, charp, 0644);
 module_param(video_mode, int, 0644);