std.crypto.hash.sha2: require avx2 on x86_64

according to
https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=vpalignr&ig_expand=283,283,284,283,283&techs=AVX_ALL
the vpalignr instruction requires AVX2 support
82520a214cLauri Tirkkonen committed on 6/29/2023, 12:33:02 AM· committed by Andrew Kelleyparent0c1bfe2
1 file changedLine totals unavailable