Simplify IndexOfAnyAsciiByteValues for needles with 0 on X86#82866

MihaZupan merged 1 commit intodotnet:maindotnet/runtime:mainfrom

MihaZupan:indexofanyvalues-x86-byte-handlezeroMihaZupan/runtime:indexofanyvalues-x86-byte-handlezeroCopy head branch name to clipboard