This is copy of raspberrypi-pico with all occurences of raspberrypi replaced by
w5500-evb. Only the usbnsh defconfig is available, which is based on the
raspberrypi-pico:usbnsh defconfig, but enables the WIZnet W5500 Ethernet chip.
TCP/IP for IPv4 and IPv6 is enabled.
Signed-off-by: Michael Jung <michael.jung@secore.ly>