[Exp] AMD HiP Backend Support

[simonguozirui]

@willhu-jpg and I trying to add AMD HiP support for AMD hardware (notably the MI300X series).

Challenge is to find the inline-cuda compile alternative for AMD.

We are starting with this reference as AMD team suggested
https://rocm.docs.amd.com/projects/hip-python/en/latest/user_guide/1_usage.html#hiprtc-launch-kernel-args

[simonguozirui]

We will close this for now, as we are unclear how to do inline compile work with HiP kernels.
If you just naïvely put cuda kernel inline and compile it, hipfy would be called for CUDA -> HiP translation. Ideally for the AMD support of KernelBench, we would be asking model to actually right some HiP code instead.

If someone wants to look into this or folks from AMD have pointers that would be great!