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

arch/arm/Kconfig

@@ -1045,6 +1045,7 @@ config ARCH_SUNXI
 	select SPL_USE_TINY_PRINTF
 	select USE_PREBOOT
 	select SYS_RELOC_GD_ENV_ADDR
+	imply BOARD_LATE_INIT
 	imply CMD_DM
 	imply CMD_GPT
 	imply CMD_UBI if MTD_RAW_NAND

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