Find and Replace all occurrences of IFD in Ghaf

[brianmcgillion]

https://nixos.org/manual/nix/unstable/language/import-from-derivation

This causes slow evaluation times as packages have to be realised along the way. It can also constitute final images being built numerous times making e.g. nix flake check and nix-fast-build take inordinate amounts of time and in part is leading to the OOM that is encountered when running these on standard hardware.

Currently, nix flake check only succeeds in the following situation nix flake check --allow-import-from-derivation as flakes generally disallow IFD in their evaluation.

[henrirosten]

Worth mentioning that nix flake check --allow-import-from-derivation on Ghaf currently requires aarch64-linux remote builder, otherwise, it fails as follows:

$ nix flake check --allow-import-from-derivation
error:
       … while checking flake output 'packages'

         at «none»:0: (source not available)

       … while checking the derivation 'packages.x86_64-linux.nvidia-jetson-orin-agx-release-flash-script'

         at «none»:0: (source not available)

       (stack trace truncated; use '--show-trace' to show the full trace)

       error: a 'aarch64-linux' with features {} is required to build '/nix/store/6gfd6yn7a6fl2ywqg29vvybrp8kbaxrg-boot.json.drv', but I am a 'x86_64-linux' with features {benchmark, big-parallel, kvm, nixos-test, uid-range}

[mikatammi]

This is fixed, as plain nix flake check without --allow-import-from-derivation works now.