We don't support Neyxs A7 board out-of-the-box, but you can create a custom board for FPGA-in-the-loop simulation.
I think JTAG interface and MII interface can be supported using new FPGA board wizard
https://www.mathworks.com/help/hdlverifier/custom-fpga-board-definition.html?s_tid=CRUX_lftnav
