[clang] [clang][AMDGPU][CUDA] Handle __builtin_printf for device printf (PR #68515)

[Mészáros Gergely via cfe-commits]

Maetveis wrote:

@jlebar @yxsamliu I don't know who could review this, but it is sitting here for quite some time unnoticed now, while being a simple enough change IMO.

https://github.com/llvm/llvm-project/pull/68515