rt2x00: checkpatch.pl error fixes for rt2500usb.c

rt2500usb.c:42: ERROR: do not initialise statics to 0 or NULL
Signed-off-by: NMark Einon <mark.einon@gmail.com>
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2500usb.c

@@ -39,7 +39,7 @@
 /*
  * Allow hardware encryption to be disabled.
  */
-static int modparam_nohwcrypt = 0;
+static int modparam_nohwcrypt;
 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");