model-conversion : run-org-model.py fails to run on mac m1

[DamonFool]

This fixes the following error with make causal-run-original-model on mac m1.

Traceback (most recent call last):
  File "/Users/jiefu/llama.cpp/examples/model-conversion/./scripts/causal/run-org-model.py", line 196, in <module>
    outputs = model(input_ids)
              ^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1773, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1784, in _call_impl
    return forward_call(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/transformers/utils/generic.py", line 940, in wrapper
    output = func(self, *args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/transformers/models/qwen2/modeling_qwen2.py", line 449, in forward
    outputs: BaseModelOutputWithPast = self.model(
                                       ^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1773, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1784, in _call_impl
    return forward_call(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/transformers/utils/generic.py", line 1064, in wrapper
    outputs = func(self, *args, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/transformers/models/qwen2/modeling_qwen2.py", line 345, in forward
    inputs_embeds = self.embed_tokens(input_ids)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1773, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1879, in _call_impl
    return inner()
           ^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1827, in inner
    result = forward_call(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/modules/sparse.py", line 192, in forward
    return F.embedding(
           ^^^^^^^^^^^^
  File "/Users/jiefu/.python_venv/llama.cpp.dev/lib/python3.11/site-packages/torch/nn/functional.py", line 2546, in embedding
    return torch.embedding(weight, input, padding_idx, scale_grad_by_freq, sparse)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Placeholder storage has not been allocated on MPS device!
make: *** [causal-run-original-model] Error 1

[danbev]

@DamonFool Thanks!

[DamonFool]

Thanks @danbev .