[llvm] [mlir] [MLGO] Do not hardcode 33 eviction feature columns (PR #224598)

[Mircea Trofin via llvm-commits]

https://github.com/mtrofin commented:

Thanks for doing this! The changes make sense, I have some nits, but let us check what's up with the 32 vs 40 discrepancy. Added @boomanaiden154 too.

https://github.com/llvm/llvm-project/pull/224598