staging: rtl8192u: add space after ',' in r819xU_HTType.h

This patch fixes the following checkpatch error:
ERROR: space required after that ','
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r819xU_HTType.h

@@ -48,7 +48,7 @@ typedef enum _HT_MCS_RATE {
 	HT_MCS14  = 0x00004000,
 	HT_MCS15  = 0x00008000,
 	/* Do not define MCS32 here although 8190 support MCS32 */
-} HT_MCS_RATE,*PHT_MCS_RATE;
+} HT_MCS_RATE, *PHT_MCS_RATE;
 
 /* Represent Channel Width in HT Capabilities */
 typedef enum _HT_CHANNEL_WIDTH {