CUDA: Check PTX version on host side to guard PDL dispatch (#23530)

* CUDA: Check PTX version on host side to guard PDL dispatch

Checking on `__CUDA_ARCH_LIST__` alone is insufficient for JIT, as this
variable doesn't differentiate between compiling for say sm_90, sm_90a
or sm_90f (so forward-jittable PTX vs. arch/family-specific PTX).

Thus, one can have a bug when compiling with
`DCMAKE_CUDA_ARCHITECTURES="89;90a"`, where current code would wrongly
dispatch to PDL on sm_90/sm_120 in forward-JIT mode.

This PR fixes this issue by checking `cudaFuncAttributes::ptxVersion` of
the incoming kernel at runtime. A check on ptxVersion alone is
sufficient, as device-codes will always be >= ptxVersion (and any
violation of this would be a severe bug in CUDA/nvcc), see:
 https://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/#gpu-code-code-code

* Implement MurmurHash3 mixer for better hash distribution

Magic constants were taken from boost:
https://github.com/boostorg/container_hash/blob/2698b43803c012601e6bb1a6116e83767b97986c/include/boost/container_hash/detail/hash_mix.hpp#L19-L65

* Update ggml/src/ggml-cuda/common.cuh

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

* Address review comments, make seed non-zero

* Apply code-formatting

* Replace std::size_t -> size_t for consistency

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Co-authored-by: Johannes Gäßler <johannesg@5d6.de>