[Feature]: Quantize/save/evaluate the Wan-AI/WAN2.2 models in w4a16 format

[lvliang-intel]

Feature Description

Feature Description
Quantize/save/evaluate the Wan-AI/WAN2.2 in w4a16 format

Motivation and Use Case

Model: https://huggingface.co/Wan-AI/Wan2.2-I2V-A14B-Diffusers
https://huggingface.co/Wan-AI/Wan2.2-TI2V-5B-Diffusers
https://huggingface.co/Wan-AI/Wan2.2-T2V-A14B-Diffusers

Target dtypes: w4a16

Alternatives Considered

No response

Definition of Done

No response

Additional Context

No response