[clang] [llvm] Clang: Add nsz to llvm.minnum and llvm.maxnum emitted from fmin and fmax (PR #113133)

[YunQiang Su via llvm-commits]

wzssyqa wrote:

> It takes too long to take this decision. Since we cannot agree on the wording of `nsz` now, and in fact we had some words in `maxnum/minnum` about nsz. I prefer we can continue with this PR.

We have got some complains: https://github.com/llvm/llvm-project/issues/138303

https://github.com/llvm/llvm-project/pull/113133