[llvm] llvm: Use add_link_options for stack size flags (PR #195034)

[Fabrice de Gans via llvm-commits]

Steelskin wrote:

The above comment is a flaky test. See the same failure on a previous build: https://lab.llvm.org/buildbot/#/builders/39/builds/10864

https://github.com/llvm/llvm-project/pull/195034