[mlir] [llvm] [mlir] Consider mlir-linalg-ods-gen as a tablegen tool in build (PR #75093)

[Stella Laurenzo via llvm-commits]

https://github.com/stellaraccident approved this pull request.

Oh thank you - this is a good catch. There seems to be a lot of special categorization I've found for "tablegen" throughout the codebase, and I've often thought that it was a bit of a misnomer that covered "code generator needed for the build that happens to always be a tablegen tool".

https://github.com/llvm/llvm-project/pull/75093