uefitool: init at A55 and 0.27.0

[ajs124]

default to new-engine

Motivation for this change

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.

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[ryantm]

Why do you want to init at 0.26.0 aka "old-engine"? It seems like this could be much simpler if we just wrote the derivation for one version.

[ajs124]

Good question. The old engine has some feature which the new one does not, see here.

However, I seem to have forgotten to install the relevant binaries to actually make use of those features. The version I pushed now fixes that.

Edit: This (potentially) replaces #45963

[ajs124]

@ryantm fixed. Plus fallout from #65399, because apparently I did that wrong.