[clang] [X86][AVX10.2] Use 's_' for saturate-convert intrinsics (PR #131592)

[Phoebe Wang via cfe-commits]

phoebewang wrote:

Here is GCC patch: https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678227.html

https://github.com/llvm/llvm-project/pull/131592