[clang] [CIR] add vsqrt and vsqrtq support (PR #192282)

[Andrzej Warzyński via cfe-commits]

https://github.com/banach-space commented:

Thank you for working on this, please see my comments inline.

I've noticed that this PR has two authors - I have updated the summary accordingly.

https://github.com/llvm/llvm-project/pull/192282