[llvm] [AArch64] Fix SVE cost model for various math intrinsics (PR #184358)

[David Sherwood via llvm-commits]

david-arm wrote:

The diff in llvm/test/Transforms/LoopVectorize/AArch64/veclib-intrinsic-calls.ll is large I think because some of the temporary variable names have changed when re-running the update script. If preferred, I can always pre-commit a PR to re-run the script first?

https://github.com/llvm/llvm-project/pull/184358