Fix FSDP SHARP integration
This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days. Bla. This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days. Bla. This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days. Bla. This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days. Bla. This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days. Bla. This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days. Bla. Independently fixed in dd69c7a7d.
The attribute was never implemented.

# What does this PR do ?

For NeMo NLP, the FSDP sharding strategy cannot be used currently because the `sharp` attribute for the `NLPFSDPStrategy` was not actually implemented in https://github.com/NVIDIA/NeMo/pull/7793, even though it is queried.

**Collection**:
- NLP

# Changelog 
- Implement missing `NLPFSDPStrategy.sharp` attribute.

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**PR Type**:
- [ ] New Feature
- [X] Bugfix
- [ ] Documentation

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# Additional Information
Related to #7793 (pull request)
