[llvm] Reland: [ORC] Tailor ELF debugger support plugin to load-address patching only (PR #169482)

[Stefan Gränitz via llvm-commits]

weliveindetail wrote:

@mgorny This is the JITLink plugin I was referring to. It is tested with lli, llvm-jitlink and in LLDB, but I think all these tests are 64-bit only:
```
llvm/test/ExecutionEngine/OrcLazy/debug-objects.ll
llvm/test/ExecutionEngine/OrcLazy/debug-descriptor.ll
lldb/test/API/functionalities/breakpoint/jit_loader_rtdyld_elf/TestJitBreakPoint.py
lldb/test/Shell/Breakpoint/jit-loader_jitlink_elf.test
```

https://github.com/llvm/llvm-project/pull/169482