[llvm] [CostModel][AArch64] Make extractelement, with fmul user, free whenev… (PR #111479)

[Sushant Gokhale via llvm-commits]

sushgokh wrote:

> When you say:
> 
> > I will amend this patch for in-tree users.
> 
> Do you mean to do that here?

Yes, amended the current patch

https://github.com/llvm/llvm-project/pull/111479