[llvm] [M68k] Correctly emit non-pic relocations (PR #89863)

[Peter Lafreniere via llvm-commits]

n8pjl wrote:

I'm more interested in using this backend for embedded development (TI calculators), but even there the pc-relative relocations could lead to an issue.

As the semester is over now, I'm slowly working through my TODO list on this backend, and that isn't as important as some other elements on that list. I'm working on a rework of value extention related code ATM (fixing a miscompilation in the process).

Anyway, I can't commit this myself, so if nobody else has any concerns, please go ahead and merge the change.

https://github.com/llvm/llvm-project/pull/89863