iPXE and USB-C

[NiKiZe]

0bda:8153 RTL8153 is Gigabit, let's try and work with something that we know works, even if buggy.

but it should work with make bin-x86_64-efi/ecm.efi after unplug and replug as far as I understand.

we have mostly confirmed that the NII driver is horribly broken on your firmware, and that is what iPXE must use for the thunderbolt nic, but I don't see how iPXE would have any drivers for this..

So there is 2 things that can be done to fix this for you:
1. Upgrade the firmware so that the NII driver works, if there is no upgrade available that fixes this issue you will need to contact Apple to get them to fix this.
2. Use native iPXE drivers for nic and bus, but who knows maybe Apple have locked down that solution as well.