opt-125m-gptq pytorch model support

[AmosLewis]

tests	model-run	onnx-import	torch-mlir	iree-compile	inference
pytorch/models/opt-125m-gptq	failed	notrun	notrun	notrun	notrun

python ./run.py --torchmlirbuild ../../torch-mlir/build --tolerance 0.001 0.001 --cachedir ./huggingface_cache --ireebuild ../../iree-build -f pytorch -g models --mode onnx --report --torchtolinalg --tests pytorch/models/pytorch/models/opt-125m-gptq

iree candidate-20240610.920

torch-mlir 
commit 7e0e23c66820d1db548103acbdf1337f701dc5a3 (upstream/main)
Author: Sambhav Jain <[email protected]>
Date:   Sun Jun 9 00:32:49 2024 -0700

    Test custom op import with symbolic shapes (#3431)
    
    Tests the basic constructs of registering a custom op and its abstract
    implementations (with FakeTensors) in python, going through TorchDynamo
    export, followed by importing the shape expressions in the Torch
    dialect.
    
    Also fixes the importer were previously the symbolic bind op insertion
    was not gated in one place.

model-run.log

Traceback (most recent call last):
  File "/home/chi/src/SHARK-TestSuite/e2eshark/test-run/pytorch/models/opt-125m-gptq/runmodel.py", line 149, in <module>
    onnx_program = torch.onnx.export(model, E2ESHARK_CHECK["input"], onnx_name)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/chi/src/torch-mlir/mlir_venv/lib/python3.11/site-packages/torch/onnx/utils.py", line 516, in export
    _export(
  File "/home/chi/src/torch-mlir/mlir_venv/lib/python3.11/site-packages/torch/onnx/utils.py", line 1612, in _export
    graph, params_dict, torch_out = _model_to_graph(
                                    ^^^^^^^^^^^^^^^^
  File "/home/chi/src/torch-mlir/mlir_venv/lib/python3.11/site-packages/torch/onnx/utils.py", line 1138, in _model_to_graph
    graph = _optimize_graph(
            ^^^^^^^^^^^^^^^^
  File "/home/chi/src/torch-mlir/mlir_venv/lib/python3.11/site-packages/torch/onnx/utils.py", line 677, in _optimize_graph
    graph = _C._jit_pass_onnx(graph, operator_export_type)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/chi/src/torch-mlir/mlir_venv/lib/python3.11/site-packages/torch/onnx/utils.py", line 1969, in _run_symbolic_function
    raise errors.UnsupportedOperatorError(
torch.onnx.errors.UnsupportedOperatorError: Exporting the operator 'aten::bitwise_right_shift' to ONNX opset version 17 is not supported. Please feel free to request support or submit a pull request on PyTorch GitHub: https://github.com/pytorch/pytorch/issues.