[llvm] [SPARC][Utilities] Add names for SPARC ELF flags in LLVM binary utilities (PR #102843)

[James Henderson via llvm-commits]

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+## Test various combinations of ELF flag values for SPARC.
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jh7370 wrote:

Nit: since the spelling appears to be "SPARC", not "Sparc", I'd rename the directory accordingly.

https://github.com/llvm/llvm-project/pull/102843