[clang] [X86][AVX10] Disable m[no-]avx10.1 and switch m[no-]avx10.2 to alias of 512 bit options (PR #124511)

[Evgenii Kudriashov via cfe-commits]

e-kud wrote:

I've been playing around and found that `-mavx10.2 -mno-avx10.2-512` enables `avx10.1-512` but `-mavx10.2-512 -mno-avx10.2-512` obviously doesn't. Does it make sense? It happens because when options match, they are eliminated before processing. But this is a problem not related to the PR.

https://github.com/llvm/llvm-project/pull/124511