Input: sur40 - fix bad endianness handling in sur40_poll

sparse says:

  sur40.c:372:40: warning: restricted __le32 degrades to integer

the header's data is __le32 so we need to convert it before comparing.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/sur40.c

@@ -369,7 +369,7 @@ static void sur40_poll(struct input_polled_dev *polldev)
 		 * packet ID will usually increase in the middle of a series
 		 * instead of at the end.
 		 */
-		if (packet_id != header->packet_id)
+		if (packet_id != le32_to_cpu(header->packet_id))
 			dev_dbg(sur40->dev, "packet ID mismatch\n");
 
 		packet_blobs = result / sizeof(struct sur40_blob);