[llvm] [llvm-c] Add LLVMDWARFTypeEncoding enum and update the MacInfo enum (PR #84456)

[via llvm-commits]

edg-l wrote:

> It looks like the Core.h changes are just reformatting, which should be done in its own NFC patch. "Update some other ones" looks like just the MacInfo enum, you could say that in the patch headline.

I added some entries, its not just reformatting.

https://github.com/llvm/llvm-project/pull/84456