Sequence Parallel for LoRA
jenkins jenkins jenkins jenkins Known issue: `model.ub_tp_comm_overlap=True` is not supported for LoRA + SP jenkins
# What does this PR do ?

Allow sequence parallel for lora training. Supports all linear modules as in #7988

**Collection**: NLP

# Changelog 
- Set sequence_parallel flags to False in LoRA layers to allow gathering output in LoRA `linear_in`
- For attention_qkv and mlp_fc1, do a manual all_gather (reduce_scatter during backward) along the sequence dimension before each lora module since the previous layer (layernorm) is affected by SP
- For attention_dense and mlp_fc2, do a manually scatter (gather during backward) along the sequence dimension after each lora module since the next layer (layernorm) is affected by SP

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- [ ] Bugfix
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# Additional Information
* Related to # 7988
