[llvm] [llvm-objcopy] Add --compress-sections (PR #85036)

[James Henderson via llvm-commits]

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@@ -309,6 +309,14 @@ them.
  Compress DWARF debug sections in the output, using the specified format.
  Supported formats are ``zlib`` and ``zstd``. Use ``zlib`` if ``<format>`` is omitted.
 
+.. option:: --compress-sections <section>=<format>
+
+ Compress or decompress sections matched by ``<section>`` using the specified
+ format. Supported formatss are ``zlib`` and ``zstd``. Specify ``none`` for
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jh7370 wrote:

```suggestion
 format. Supported formats are ``zlib`` and ``zstd``. Specify ``none`` for
```

https://github.com/llvm/llvm-project/pull/85036