sunxi: board: Move USB ethernet initialization to board_late_init()

For the sake of consistency (*) and order of initialization, i.e.
after we have got the ethernet address, interrupt and timer initialized,
try to initialize USB ethernet gadget.

*) for example, zynqmp uses same order.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

board/sunxi/board.c

@@ -890,6 +890,11 @@ int misc_init_r(void)
 
 	setup_environment(gd->fdt_blob);
 
+	return 0;
+}
+
+int board_late_init(void)
+{
 #ifdef CONFIG_USB_ETHER
 	usb_ether_init();
 #endif