[llvm] Fix typo in condition AArch64InstrInfo::copyPhysReg. (PR #173450)

[Tomer Shafir via llvm-commits]

tomershafir wrote:

Currently, there is no such thing as `zcm-fpr32`. The FPR8 move is lowered to a FPR32 move by default if there is no appropriate ZCM support.

In second though, I think we should also cover lowering FPR8 move to FPR64 move via `zcm-fpr64` which is missing. (its also missing from other tests, but Ill add that there in a separate PR). 

Also pls keep the space between the check lines so its more readable.

https://github.com/llvm/llvm-project/pull/173450