[llvm] [flang][rt] Add noinline attributes for CUDA compile path for successful compilation (PR #161760)

[Slava Zakharin via llvm-commits]

vzakhari wrote:

Thanks for the changes! Please use `RT_DEVICE_NOINLINE` macro instead. We have it defined in `flang/include/flang/Common/api-attrs.h`.

https://github.com/llvm/llvm-project/pull/161760