[clang] [compiler-rt] [llvm] [X86] AVX10_V2_AUX Implementation (PR #206888)

[Evgenii Kudriashov via cfe-commits]

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@@ -632,6 +632,8 @@ features cannot lower the translation-unit ABI level;
 
 #### X86 Support
 
+- Support ISA of `AVX10_V2_AUX` (`-mavx10v2aux`).
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e-kud wrote:

Do we need release notes in llvm/doc as well?

https://github.com/llvm/llvm-project/pull/206888