[llvm] [ORC] Use __unw_add_dynamic_eh_frame_section/__unw_remove_dynamic_eh_ frame_section in RegisterEHFrames.cpp (PR #212260)

[Lang Hames via llvm-commits]

https://github.com/lhames approved this pull request.

Thanks for working on this @mkovacevic99, and for your patience with the review!

LGTM!

https://github.com/llvm/llvm-project/pull/212260