[lld] [lld][test] filecheck typo fixes (PR #93471)

[Peter Smith via llvm-commits]

smithp35 wrote:

> Current:
> 
> ```
> Failed Tests (4):
> --
>   | lld :: ELF/aarch64-cortex-a53-843419-thunk-align.s
>   | lld :: ELF/arm-thumb-branch-rangethunk.s
>   | lld :: ELF/dso-undef-size.s
>   | lld :: MachO/compact-unwind-foldings.s
> ```
> 
> `compact-unwind-foldings.s` still stuck from last try, and for rebased ones need help too.

I can help with ELF/aarch64* and ELF/arm* if you need it?

Depending on how big the update is, it may be better for me to submit a separate PR rather than post what needs to change.

https://github.com/llvm/llvm-project/pull/93471