make grouplinear accept the fp8 input

[Autumn1998]

Description

Make the Grouped linear accept the blockwise fp8 input

Rely on https://github.com/NVIDIA/TransformerEngine/pull/1707 for the compact scaling factors.

TODO:

• [ ] Change the kernel to use compact scaling factors.
• [ ] Test

Type of change

• [ ] Documentation change (change only to the documentation, either a fix or a new content)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Infra/Build change
• [ ] Code refactoring

Changes

Please list the changes introduced in this PR:

• Change A
• Change B

Checklist:

• [ ] I have read and followed the contributing guidelines
• [ ] The functionality is complete
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes

[zhongbozhu]

Please take a look this https://github.com/NVIDIA/TransformerEngine/pull/1707

FP8 gather for dense model + sequence parallel should be supported with the new need_compact usage API. Suggestions are highly welcomed!