usb: gadget: function: fix typo in f_printer.c

In line 824, it is trying to enable `out_ep`, so I
believe that in line 826, it should print `out_ep`
instead of `in_ep`.
Signed-off-by: Wei Ming Chen <jj251510319013@gmail.com>
Link: https://lore.kernel.org/r/20210214121929.9750-1-jj251510319013@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/function/f_printer.c

@@ -825,7 +825,7 @@ set_printer_interface(struct printer_dev *dev)
 
 	result = usb_ep_enable(dev->out_ep);
 	if (result != 0) {
-		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
+		DBG(dev, "enable %s --> %d\n", dev->out_ep->name, result);
 		goto done;
 	}