Draft: Fix flashinfer swizzle enum name for flashinfer update.

[weireweire]

Purpose

New flahsinfer have changed the enum name.

Besides, to update flashinfer, flashinfer-ai/flashinfer#1475 require we make the scale of moe 2d for autotune. But it's not handle in this PR.

Test Plan

Test Result

(Optional) Documentation Update

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[gemini-code-assist]

Code Review

This pull request updates an enum name in vllm/compilation/collective_fusion.py to reflect a change in the flashinfer library. Specifically, flashinfer_comm.FP4QuantizationSFLayout.SWIZZLED is renamed to flashinfer_comm.QuantizationSFLayout.SWIZZLED. This change is correct and necessary for compatibility with the updated dependency. The pull request is a draft, and the author has noted that additional changes related to the flashinfer update will be handled separately.

[nvpohanh]

SWIZZLED needs to be changed to SWIZZLED_128x4

(caused by flashinfer-ai/flashinfer@669ff33 )

[weireweire]

merged in #23537