GH-131521: fix clangcl build on Windows for zlib-ng by chris-eibl · Pull Request #131526 · python/cpython

so that the resulting binary can be executed on older CPUs, too.
Also use AdvancedVectorExtensions512 where necessary.

some of the files tail-call.yml is watching were touched
on main, and thus I think it will fire :)

…honGH-131526)

Do not enable AdvancedVectorExtensions2 for all *.c files, so that the resulting binary can be executed on older CPUs, too. Also enable AdvancedVectorExtensions512 where necessary, and add the ClangCL flags required to enable vector extensions.