fix past-kv in general LLM exporter (#18529)

### Description
<!-- Describe your changes. -->

For some models, we need to re run model.forward to get past-kv

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

onnxruntime/python/tools/transformers/large_model_exporter.py

@@ -157,14 +157,14 @@ def hook_for_inputs(_, inputs, kwargs):
     for idx, (key, value) in enumerate(zip(input_keys, onnx_inputs)):
         if type(value) is torch.Tensor:
             value.to(model.device)
-        # Didn't touch past_key_value now, please change it if you want
         if "use_cache" in key:
             onnx_inputs[idx] = with_past
+            out = model(sample_inputs[0], attention_mask=sample_inputs[1], use_cache=with_past) if with_past else out
 
     return input_keys, onnx_inputs, out.past_key_values
 
 
-def move_to_approprate_device(model: nn.Module, sample_inputs_tp: tuple) -> nn.Module:
+def move_to_appropriate_device(model: nn.Module, sample_inputs_tp: tuple) -> nn.Module:
     """
     According to the model size, we will upload it to
     CPU if has no GPU or enough GPU memory,
@@ -307,7 +307,7 @@ def export_onnx(hf_model: str, cache_dir: Optional[str], onnx_path_str: str, wit
     """
     model, sample_inputs_tp = initialize_model_and_sample_inputs(hf_model, cache_dir)
 
-    model = move_to_approprate_device(model, sample_inputs_tp)
+    model = move_to_appropriate_device(model, sample_inputs_tp)
 
     sample_inputs = adapt_inputs_to_device(sample_inputs_tp, next(model.parameters()).device)