staging: rtl8723bs: hal: Modify comparison to constant in hal_btcoex.c

Modify comparison to 0 in file hal_btcoex.c in order to follow kernel
coding style of constant should appear on right side.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/hal/hal_btcoex.c

@@ -1584,7 +1584,7 @@ u32 hal_btcoex_GetDBG(struct adapter *padapter, u8 *pStrBuf, u32 bufSize)
 	u32 leftSize;
 
 
-	if (!pStrBuf || (0 == bufSize))
+	if (!pStrBuf || bufSize == 0)
 		return 0;
 
 	pstr = pStrBuf;