gadget: f_thor: update to support more than 4GB file as thor 5.0

During file download, it only uses 32bit variable for file size and
it limits maximum file size less than 4GB. Update to support more
than 4GB file with using two 32bit variables for file size as thor
protocol 5.0.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
diff --git a/drivers/usb/gadget/f_thor.h b/drivers/usb/gadget/f_thor.h
index 47abc8a..8ba3fa2 100644
--- a/drivers/usb/gadget/f_thor.h
+++ b/drivers/usb/gadget/f_thor.h
@@ -34,7 +34,7 @@
 	__u8 DAUValue;
 } __packed;
 
-#define VER_PROTOCOL_MAJOR	4
+#define VER_PROTOCOL_MAJOR	5
 #define VER_PROTOCOL_MINOR	0
 
 enum rqt {