Support for Ovis2.5

I am trying to quantize AIDC-AI/Ovis2.5-2B (https://huggingface.co/AIDC-AI/Ovis2.5-2B)  and im getting
```
  File "/home/ubuntu/captioning/llm-awq/awq/quantize/pre_quant.py", line 53, in get_blocks
    raise NotImplementedError(type(model))
NotImplementedError: <class 'transformers_modules.modeling_ovis2_5.Ovis2_5'>
```