[compiler-rt] [win/asan] Don't intercept memset etc. in ntdll (PR #120397)

[Hans Wennborg via llvm-commits]

zmodem wrote:

I think this strikes the right balance between hacky and pragmatic, and is in line with @rnk's advice in https://github.com/llvm/llvm-project/issues/114793#issuecomment-2455265172

@rnk, @zacklj89, @barcharcraz, @yjugl What do you think?

https://github.com/llvm/llvm-project/pull/120397