[llvm] OrcV2: also set COFF flag overrides when custom linking layer is used (PR #129533)

[Lang Hames via llvm-commits]

lhames wrote:

Hi Wenzel,

Sorry for the late reply — I’ve been out on vacation since early April. I’m back next Monday and should be able to look into this later in the week.

Thanks for your patience!

https://github.com/llvm/llvm-project/pull/129533