[llvm] [AArch64] Adjust the scheduling info of SVE FCMP on Cortex-A510. (PR #153810)

[Asher Dobrescu via llvm-commits]

https://github.com/Asher8118 approved this pull request.

I've not looked through all of the CodeGen test changes, but the code change itself makes sense and matches the SWOG and the MCA test looks fine. LGTM.

https://github.com/llvm/llvm-project/pull/153810