[clang] [llvm] cuda clang: Fix argument order for __reduce_max_sync (PR #132881)

[Artem Belevich via llvm-commits]

Artem-B wrote:

> > @AustinSchuh would you like me to merge the change for you, once the checks are done?
> 
> That would be wonderful. I don't know how to merge it (happy to learn, but I suspect I won't do it more than a couple of times)

https://llvm.org/docs/DeveloperPolicy.html#obtaining-commit-access explains the process. For occasional patches, asking reviewers to land the patches is perfectly fine.

https://github.com/llvm/llvm-project/pull/132881