[llvm] Add more llvm-objdump test coverage for arm64e.x1 (PR #224110)

[Nico Weber via llvm-commits]

nico wrote:

I merged this, it has been sitting here for 9 days.

I don't think waiting 9 days for input on a small test-only change is reasonable, fwiw.

https://github.com/llvm/llvm-project/pull/224110