[clang] [CIR][AArch64] Handle constrained Neon FMA and sqrt (PR #218307)

[Yair Ben Avraham via cfe-commits]

yairbenavraham wrote:

The remaining failures appear unrelated to this PR: the same tests also fail in https://github.com/llvm/llvm-project/actions/runs/36557266864/job/109369316377  for an unrelated PR.

https://github.com/llvm/llvm-project/pull/218307