[llvm] [WebAssembly] Correct operands for NaN/Zero checks in min/max (PR #189712)

[via llvm-commits]

zGoldthorpe wrote:

> LGTM, was this crashing somewhere? do you have a test for this?
> Please wait for another approval before merging.

Thanks!
This caused crashes while trying to assert that the `isKnownNeverNaN` operand must be of FP type in #189752

https://github.com/llvm/llvm-project/pull/189712