[llvm] [IR] Add llvm.vector.[de]interleave{4,6,8} (PR #139893)

[Luke Lau via llvm-commits]

lukel97 wrote:

If there's no objections I'll merge this early next week, but happy to hold on if people still want to discuss the direction cc @efriedma-quic 

https://github.com/llvm/llvm-project/pull/139893