[clang] [CIR][AArch64] Lower NEON zip1/2 elements intrinsics (PR #194311)

[Jiahao Guo via cfe-commits]

E00N777 wrote:

> > @banach-space Hi, could you help me merge this PR first?
> 
> While reviewing #193658 I realised that we should move tests for `zip`/`unzip` to a dedicated file, e.g. "test/CodeGen/AArch64/neon/perm.c". Apologies for the sudden change, but could you implement this change before merging this? Thank you!

OK,I have migrated intrinsics into `test/CodeGen/AArch64/neon/perm.c`
Regarding PR #193658, I plan to rebase it after the current PR is merged, and then move the remaining zip intrinsics into `perm.c`

https://github.com/llvm/llvm-project/pull/194311