[llvm] [AMDGPU][NFC] Test autogenerated llc tests for COV5 (PR #74339)

[Saiyedul Islam via llvm-commits]

saiislam wrote:

I have only added following module flag to these tests and regenerated them using `update_llc_test_checks.py`:

```
!llvm.module.flags = !{!0}
!0 = !{i32 1, !"amdgpu_code_object_version", i32 500}
```

https://github.com/llvm/llvm-project/pull/74339