Feature Request: add support for ManT1S

[No0ne]

I'm trying to add support for the ManT1S board: https://mant1s.net / https://www.crowdsupply.com/silicognition/mant1s
Can you give me a hint how to compile this with LAN867x support?
I found some code for this but I don't know how this fits togehter: https://github.com/espressif/arduino-esp32/blob/6cfa93f4b4e2c0e3cf492e4a45780bfbe757fcd4/libraries/Ethernet/src/ETH.h#L145

I updated the platformio.ini to platform = espressif32@6.12.0 and added ethType = ETH_PHY_LAN867X; but I'm stuck with this:

lib/ConnectionHandler/src/EthernetConnectionHandler.cpp: In member function 'virtual bool EthernetConnectionHandler::connect(NetworkConfig, SystemConfig)':
lib/ConnectionHandler/src/EthernetConnectionHandler.cpp:72:23: error: 'ETH_PHY_LAN867X' was not declared in this scope
             ethType = ETH_PHY_LAN867X;
                       ^~~~~~~~~~~~~~~
lib/ConnectionHandler/src/EthernetConnectionHandler.cpp:72:23: note: suggested alternative: 'ETH_PHY_LAN8720'
             ethType = ETH_PHY_LAN867X;
                       ^~~~~~~~~~~~~~~
                       ETH_PHY_LAN8720

[No0ne]

🤔 since this works: https://github.com/xorbit/ManT1S-demos/blob/main/Arduino_ETH_ManT1S/ETH_ManT1S.ino
I'll try amsreader with the LAN8720 code when I receive the boards.