[llvm] [AArch64] Add ZIP and UZP shuffle costs. (PR #88150)

[Sjoerd Meijer via llvm-commits]

sjoerdmeijer wrote:

> Hello. Yes it fixed some regressions from #87510, in a similar way to #87934. Do you have any cases where it is causing problems?

Ok, that's great. I don't have any specific cases, it was just a curiousity because shuffle vectors has caused us some pain and was wondering if making them cheaper (at least some variants) would lead to any surprises.

This also LGTM, let's see how this behaves.

https://github.com/llvm/llvm-project/pull/88150