[Feature] Option to generate PDI + insts

[ypapadop-amd]

Since full ELF is not supported for Phoenix, we need an alternative to generate PDI and insts outside the xclbin container.

It may require air to support --aie-generate-pdi --pdi-name={pdi_path}.

[erwei-xilinx]

This is still on my todo list. Will continue working on this from AIR once the PR queue there is cleared.