Build ipxe images for arm64
ipxe sourcecode from: http://git.ipxe.org/ipxe.git
currently only works on arm64 machines
for direct chainloading (if your dhcp server doesn't provide) edit
compile_ipxe/chain.ipxe
docker build -t makesnp .
#for usage
docker run -it makesnp -h
#get binary with docker cp after succesful build
docker cp <containerid>:/ipxe/src/bin-arm64-efi/snp.efi ./