staging: wilc1000: fixes no space is necessary after a cast

This patch fixes the check reported by checkpatch.pl
for 'no space is necessary after a cast'.
Signed-off-by: NLeo Kim <leo.kim@atmel.com>
Signed-off-by: NGlen Lee <glen.lee@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_wlan.c

@@ -1267,7 +1267,7 @@ static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
 	switch (cmd) {
 	case SIOCSIWPRIV:
 	{
-		struct iwreq *wrq = (struct iwreq *) req;
+		struct iwreq *wrq = (struct iwreq *)req;
 
 		size = wrq->u.data.length;