Fix DDP unused param error when TE is enabled in NeMo Lite
<!-- pylint-output-strict-mode-false -->

beep boop 🤖: 🙏 The following files have warnings. In case you are familiar with these, please try helping us to improve the code base.

---

Your code was analyzed with PyLint. The following annotations have been identified:

```
************* Module hf
examples/llm/sft/hf.py:74:0: C0301: Line too long (162/119) (line-too-long)
examples/llm/sft/hf.py:26:0: C0115: Missing class docstring (missing-class-docstring)
examples/llm/sft/hf.py:39:0: C0116: Missing function or method docstring (missing-function-docstring)
examples/llm/sft/hf.py:23:0: W0611: Unused ModelCallback imported from nemo.lightning.pytorch.callbacks (unused-import)
************* Module nemo.collections.llm.gpt.model.hf_auto_model_for_causal_lm
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:26:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:34:0: C0115: Missing class docstring (missing-class-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:58:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:69:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:72:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:89:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:101:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:115:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/llm/gpt/model/hf_auto_model_for_causal_lm.py:126:4: C0116: Missing function or method docstring (missing-function-docstring)

-----------------------------------
Your code has been rated at 8.93/10
```

---

Thank you for improving NeMo's documentation! [🤖]: Hi @oyilmaz-nvidia 👋,

We wanted to let you know that a [CICD pipeline](https://github.com/NVIDIA/NeMo/actions/runs/11979886620) for this PR just finished successfully

So it might be time to merge this PR or get some approvals

I'm just a bot so I'll leave it you what to do next.

//cc @pablo-garay @ko3n1g
# What does this PR do ?

Fixed DDP issue with TE