USB: fix location of statement label in dummy-hcd

This patch (as984) fixes a rather elementary mistake in dummy_hcd.
The new statement label should come before the spin_unlock_irqrestore,
not after it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/dummy_hcd.c

@@ -1001,8 +1001,8 @@ static int dummy_urb_enqueue (
 	if (!timer_pending (&dum->timer))
 		mod_timer (&dum->timer, jiffies + 1);
 
-	spin_unlock_irqrestore (&dum->lock, flags);
  done:
+	spin_unlock_irqrestore(&dum->lock, flags);
 	return rc;
 }