[llvm] [mlir] Fix CMake dependencies on mlir-linalg-ods-yaml-gen (PR #112224)

[Thomas Preud'homme via llvm-commits]

RoboTux wrote:

> I just reverted, seeing how many bots are broken here this seemed like straightforward.

Indeed, thanks. That's very odd, previous version didn't break bots and the only difference is the variable no longer being a cache variable but the variable being cache meant incremental builds across the commit was not possible. Sorry about that, I'll figure out what went wrong.

https://github.com/llvm/llvm-project/pull/112224