python3Packages.openai-triton: narrow the definition of broken

[ConnorBaker]

Description of changes

Working on #256324, this allows us to build LLVM for the Jetson. Additionally makes the AMD and NVIDIA backends mutually exclusive to reduce closure size. AMD and NVIDIA backends are not mutually here. Triton actually requires that both be present: https://github.com/openai/triton/blob/768fc1fcd98ecfc0892f8982b0bb009dd7bb11ea/CMakeLists.txt#L73.

Thank you @Madouura for making this a separate derivation!

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 23.11 Release Notes (or backporting 23.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

[ConnorBaker]

Result of nixpkgs-review pr 261654 --extra-nixpkgs-config '{ allowUnfree = true; cudaSupport = true; cudaCapabilities = [ "8.9" ]; }' run on x86_64-linux 1

[samuela]

diff LGTM