[llvm] Partial work on JITLink ARM64-COFF (PR #89697)

[Akshanabha Chakraborty via llvm-commits]

ahqsoftwares wrote:

@lhames @orion160 @vgvassilev Just a reminder, as i suppose it was held back due to a lack of build bot. Now GitHub Actions natively supports arm64 runners with the `windows-11-arm` runner for free on public repositories.

https://github.com/llvm/llvm-project/pull/89697