usb: ohci-hcd: submit_common_msg: report actual_length properly

submit_common_msg should report amount of data passed from/to device.
Instead, it always returned size requested by Host.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 4ed07da..219d182 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1548,7 +1548,7 @@
 	}
 
 	dev->status = stat;
-	dev->act_len = transfer_len;
+	dev->act_len = urb->actual_length;
 
 #ifdef DEBUG
 	pkt_print(urb, dev, pipe, buffer, transfer_len,