common: cmd_dfu: invoke board_usb_cleanup() for cleaning up

Invoked board_usb_cleanup for cleaning up initialized USB. It
will be invoked if the user enterts ctrl-C.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>

common/cmd_dfu.c

@@ -68,6 +68,7 @@ static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	}
 exit:
 	g_dnl_unregister();
+	board_usb_cleanup(controller_index, USB_INIT_DEVICE);
 done:
 	dfu_free_entities();
 

common/usb.c

@@ -1090,4 +1090,10 @@ int board_usb_init(int index, enum usb_init_type init)
 {
 	return 0;
 }
+
+__weak
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+	return 0;
+}
 /* EOF */