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

[Mikołaj Piróg via cfe-commits]

https://github.com/mikolaj-pirog commented:

GCC now has support for AVX10_V2_AUX -- this means we can support it here as well for compiler-rt (making sure we copy the bit value in the enum). This also involves moving from X86_FEATURE to X86_FEATURE_COMPAT in X86TargerParser.def

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