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

[Evgenii Kudriashov via cfe-commits]

https://github.com/e-kud approved this pull request.

LGTM. With some minor parts: description and adding displacement tests.

@mikolaj-pirog could you please take another look regarding feature compat?

@RKSimon @phoebewang could you please take a brief look as well?

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