Fix USB initialization.

After USB RESET, all endpoints registers are being reset.  So,
there is no need to let each endpoint stall (it's disabled).
Actually, it's wrong to call usb_lld_stall_rx or usb_lld_stall_tx
before usb_lld_setup_endpoint, because other fields of endpoint
register are not specified after RESET.

src/usb-ccid.c

@@ -1579,10 +1579,6 @@ usb_event_handle (struct usb_dev *dev)
   /* Transfer to endpoint (not control endpoint) */
   if (ep_num != 0)
     {
-      /* Ignore sprious "Correct Transfer" */
-      if (bDeviceState != USB_DEVICE_STATE_CONFIGURED)
-	return 0;
-
       if (USB_EVENT_TXRX (e))
 	usb_tx_done (ep_num, USB_EVENT_LEN (e));
       else