staging: rtl8723au: hal: Use macro ARRAY_SIZE

The macro ARRAY_SIZE is more concise to use instead of dividing
size of the array by the size of its type.

Changes were made using Coccinelle.

@@
type T;
T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c

@@ -215,7 +215,7 @@ void ODM_ReadAndConfig_RadioA_1T_8723A(struct dm_odm_t *pDM_Odm)
 	u32     i           = 0;
 	u8     platform    = 0x04;
 	u8     board       = pDM_Odm->BoardType;
-	u32     ArrayLen    = sizeof(Array_RadioA_1T_8723A)/sizeof(u32);
+	u32     ArrayLen    = ARRAY_SIZE(Array_RadioA_1T_8723A);
 	u32 *Array = Array_RadioA_1T_8723A;
 
 	hex += board;