[PATCH v2 2/3] x86: support AVX10.1/512

[Jiang, Haochen]

> ---
> TBD: What about (VEX-encoded) FMA, F16C, AVX-VNNI, AVX-IFMA? Should we
>      make those prereqs as well, along with the various AVX512* ones?
>      (If so, the latter two would want VEX encodings generally preferred
>      over EVEX ones when AVX10.1 is explicitly enabled, unless Disp8
>      scaling helps shortening the resulting encoding.)

Forgot to mention in previous thread, AVX-IFMA should not be implied for AVX10.1
because it will not be present in Granite Rapids.

Thx,
Haochen