[llvm] [Linker] Propagate `nobuiltin` attributes when linking known libcalls (PR #89431)

[Guillaume Chatelet via llvm-commits]

gchatelet wrote:

@jhuber6 I don't know the linking part enough to do a good review here so I will leave it to more knowledgeable people. @teresajohnson would you be able to help?

https://github.com/llvm/llvm-project/pull/89431