[llvm] [llvm-objdump] Add possibility to verify .note section format (PR #90458)

[James Henderson via llvm-commits]

================
@@ -1,34 +1,46 @@
 ## Verify that --add-section warns on invalid note sections.
 
 # Add [namesz, descsz, type, name, desc] for a build id.
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jh7370 wrote:

```suggestion
## Add [namesz, descsz, type, name, desc] for a build id.
```

https://github.com/llvm/llvm-project/pull/90458