Staging: rtl8192u: Remove space before ','

This patch fixes checkpatch.pl error in file r8190_rtl8256.h
ERROR: space prohibited before that ',' (ctx:WxW)
Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8190_rtl8256.h

@@ -14,7 +14,7 @@
 #define RTL8225H
 
 #define RTL819X_TOTAL_RF_PATH 2 /* for 8192U */
-extern void PHY_SetRF8256Bandwidth(struct net_device *dev , HT_CHANNEL_WIDTH Bandwidth);
+extern void PHY_SetRF8256Bandwidth(struct net_device *dev, HT_CHANNEL_WIDTH Bandwidth);
 extern void PHY_RF8256_Config(struct net_device *dev);
 extern void phy_RF8256_Config_ParaFile(struct net_device *dev);
 extern void PHY_SetRF8256CCKTxPower(struct net_device *dev, u8	powerlevel);