[llvm] [llvm-objdump][AMDGPU] Pass ELF ABIVersion through disassembler (PR #78907)

[Fangrui Song via llvm-commits]

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@@ -50,6 +50,9 @@ bool isHsaAbi(const MCSubtargetInfo &STI);
 /// \returns Code object version from the IR module flag.
 unsigned getAMDHSACodeObjectVersion(const Module &M);
 
+/// \returns Code object version from ELF's e_ident[ABIVERSION].
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MaskRay wrote:

`e_ident[EI_ABIVERSION]`

https://github.com/llvm/llvm-project/pull/78907