* NUCLEO_F746ZG : enable Ethernet and LwIP for this target.
Net tests were passed :
mbed-os-features-feature_ipv4-tests-mbedmicro-net-nist_internet_time_service
| OK
mbed-os-features-feature_ipv4-tests-mbedmicro-net-tcp_client_hello_world
| OK
The 2 other are failing because I cannot test them on my ST computer.