haskellPackages.llvm-ffi-tools, llvm-pkg-config: re-enabled

Closes #146473.

Co-authored-by: sternenseemann <[e-mail]>

pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml

···
   - llsd
   - llvm-base
   - llvm-ffi
-  - llvm-ffi-tools
   - llvm-general-pure
   - llvm-ht
-  - llvm-pkg-config
   - llvm-pretty
   - lmonad
   - load-balancing

pkgs/development/haskell-modules/hackage-packages.nix

···
        ];
        description = "Tools for maintaining the llvm-ffi package";
        license = lib.licenses.bsd3;
-       hydraPlatforms = lib.platforms.none;
-       broken = true;
      }) {};
 
   "llvm-general" = callPackage
···
        ];
        description = "Generate Pkg-Config configuration file for LLVM";
        license = lib.licenses.bsd3;
-       hydraPlatforms = lib.platforms.none;
-       broken = true;
      }) {};
 
   "llvm-pretty" = callPackage