support dynamic activation quant for w4afp8 (#5117)

Author: Sunny-bot1

fastdeploy/model_executor/layers/moe/fused_moe_cutlass_backend.py

@@ -1090,7 +1090,7 @@ def _process_weight_scale(name: str, weight_scales: list[paddle.Tensor], process
             "down_proj_in_scale": weight_key_map.get("down_proj_expert_in_scale_key", None),
         }
         for name, value in scale_key_map.items():
-            if value is None:
+            if hasattr(layer, name) and value is None:
                 raise ValueError(f"scale {name} should not be none in w4a8 mode.")
 
         # 2. Extract scale tensor from state dict
@@ -1111,8 +1111,9 @@ def _process_weight_scale(name: str, weight_scales: list[paddle.Tensor], process
 
         for expert_idx in logical_expert_ids:
             for name, scale_key_template in scale_key_map.items():
-                scale_tensor = _extract_scale_tensor(layer, state_dict, scale_key_template, expert_idx)
-                scale_weight_map[name].append(scale_tensor)
+                if hasattr(layer, name):
+                    scale_tensor = _extract_scale_tensor(layer, state_dict, scale_key_template, expert_idx)
+                    scale_weight_map[name].append(scale_tensor)
 
         for i, weight_scale_name in enumerate(["up_gate_proj_weight_scale", "down_proj_weight_scale"]):
             in_scale_name = weight_scale_name.replace("_weight_scale", "_in_scale")