[Diffusion][Feature] Implement SP support in LongCatImageTransformer (#721)

Signed-off-by: XU Mingshi <91017482+mxuax@users.noreply.github.com>
Signed-off-by: mxuax <mxuax@connect.ust.hk>
Signed-off-by: 齐保元 <qibaoyuan@xiaomi.com>

Author: mxuax

docs/user_guide/acceleration/parallelism_acceleration.md

@@ -20,8 +20,8 @@ The following table shows which models are currently supported by parallelism me
 
 | Model | Model Identifier | Ulysses-SP | Ring-SP | CFG-Parallel | Tensor-Parallel |
 |-------|------------------|------------|---------|--------------|--------------------------|
-| **LongCat-Image** | `meituan-longcat/LongCat-Image` | ❌ | ❌ | ❌ | ❌ |
-| **LongCat-Image-Edit** | `meituan-longcat/LongCat-Image-Edit` | ❌ | ❌ | ❌ | ❌ |
+| **LongCat-Image** | `meituan-longcat/LongCat-Image` | ✅ | ✅ | ❌ | ❌ |
+| **LongCat-Image-Edit** | `meituan-longcat/LongCat-Image-Edit` | ✅ | ✅ | ❌ | ❌ |
 | **Ovis-Image** | `OvisAI/Ovis-Image` | ❌ | ❌ | ❌ | ❌ |
 | **Qwen-Image** | `Qwen/Qwen-Image` | ✅ | ✅ | ✅ | ❌ |
 | **Qwen-Image-Edit** | `Qwen/Qwen-Image-Edit` | ✅ | ✅ | ✅ | ❌ |