Support Sana-sprint and sana 1.5

[circuluspibo]

I checked sana is available using optimum-intel (export).
but I could not using sana-sprint which is extreamly fast. (https://huggingface.co/Efficient-Large-Model/Sana_Sprint_1.6B_1024px_diffusers)
and also need to support sana1.5

Could you add this model?