[llvm] [JITLink] fix i686 R_386_32 relocation value (PR #111091)

[Lang Hames via llvm-commits]

lhames wrote:

Thanks very much at @vtjnash! Do you think you could add a test with a non-zero addend in `llvm/test/ExecutionEngine/JITLink/i386` to test this?

https://github.com/llvm/llvm-project/pull/111091