* adding gpios define
 * t66 PVT start from pcb version > 3
 * remove extra define
 * don't init SPI, USDHC2, USDHC3
 * adding setup_iomux_gpio(), init all t66 gpio
 * move t66_check_last_state() into board_later_init()
 * move board_later_init() after initr_net(), let wol doing first before shutdown.