[lld] [llvm] [llvm][lld] Support R_RISCV_GOT32_PCREL (PR #72587)

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PiJoules wrote:

Didn't notice until now that 41 was taken up by `R_RISCV_GNU_VTINHERIT` which I believe is a very old relocation that's unsupported by most linkers along with `R_RISCV_GNU_VTENTRY`. Not sure if we want to remove them altogether or change their codes or give `R_RISCV_GOT32_PCREL` a new code. For now, I just removed them.

https://github.com/llvm/llvm-project/pull/72587