[llvm] [NFC][llvm-objdump][AArch64][ELF][PAC] Add tests for ELF AUTH constants (PR #74298)

[Daniil Kovalev via llvm-commits]

kovdan01 wrote:

> > [NFC][llvm-objdump][AArch64][ELF][PAC] Add tests for ELF AUTH constants
> 
> I'd omit `[ELF][PAC]` since they don't convey extra value. I may change `[NFC]` to `[test]`.

Thanks, updated the commit message as suggested, force-pushed the new one.

https://github.com/llvm/llvm-project/pull/74298