KC868-A16 - Own Arduino firmware

[boe666]

the settings should be:
#define ETH_PHY_TYPE ETH_PHY_LAN8720
#define ETH_PHY_ADDR 0
#define ETH_PHY_MDC 23
#define ETH_PHY_MDIO 18
#define ETH_PHY_POWER -1
#define ETH_CLK_MODE ETH_CLOCK_GPIO17_OUT
then works.