staging: rtl8188eu: include: odm.h: fixed a blank space coding style issue.

added blank space and enclosed a complex valued macro within parentheses for improved code readability.
Signed-off-by: B K Karthik <karthik.bk2000@live.com>
Link: https://lore.kernel.org/r/20200629080748.l4ufcpuk4cg2m725@pesu-pes-eduSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/include/odm.h

@@ -242,7 +242,7 @@ struct odm_rate_adapt {
 
 #define AVG_THERMAL_NUM		8
 #define IQK_Matrix_REG_NUM	8
-#define IQK_Matrix_Settings_NUM	1+24+21
+#define IQK_Matrix_Settings_NUM	(1 + 24 + 21)
 
 #define	DM_Type_ByFWi		0
 #define	DM_Type_ByDriver	1