staging: rtl8712: Added spaces around '+'

Add spaces around arithmetic operator '+',  to conform to the Linux
kernel coding style. Issue found using checkpatch.
Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl8712_cmd.h

@@ -145,8 +145,8 @@ enum rtl8712_h2c_cmd {
 #define _SetBBReg_CMD_		_Write_BBREG_CMD_
 #define _GetRFReg_CMD_		_Read_RFREG_CMD_
 #define _SetRFReg_CMD_		_Write_RFREG_CMD_
-#define _DRV_INT_CMD_		(MAX_H2CCMD+1)
-#define _SetRFIntFs_CMD_	(MAX_H2CCMD+2)
+#define _DRV_INT_CMD_		(MAX_H2CCMD + 1)
+#define _SetRFIntFs_CMD_	(MAX_H2CCMD + 2)
 
 #ifdef _RTL8712_CMD_C_
 static struct _cmd_callback	cmd_callback[] = {