staging: vt6655: Adding space around '+'

This patch fixes the checkpatch issue by adding space around the
operator '+'.

Signed-off-by: Varsha Rao <rvarsha016@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/vt6655/card.h b/drivers/staging/vt6655/card.h
index 2f0f893..44420b5 100644
--- a/drivers/staging/vt6655/card.h
+++ b/drivers/staging/vt6655/card.h
@@ -46,7 +46,7 @@
 
 #define CB_MAX_CHANNEL_24G      14
 #define CB_MAX_CHANNEL_5G       42
-#define CB_MAX_CHANNEL          (CB_MAX_CHANNEL_24G+CB_MAX_CHANNEL_5G)
+#define CB_MAX_CHANNEL          (CB_MAX_CHANNEL_24G + CB_MAX_CHANNEL_5G)
 
 typedef enum _CARD_PKT_TYPE {
 	PKT_TYPE_802_11_BCN,