[llvm] [mlir] [mlir][EmitC] Add MathToEmitC pass for math function lowering to EmitC (PR #113799)

[Marius Brehler via llvm-commits]

marbre wrote:

Seems there are also some formatting changes necessary. I didn't realized that the CI needed approval to fully run.

https://github.com/llvm/llvm-project/pull/113799