Fix minimax m2.5 nvfp4 kv scales weight loading (#37214)

Signed-off-by: wzhao18 <wzhao18.sz@gmail.com>

vllm/model_executor/models/minimax_m2.py

@@ -439,6 +439,17 @@ class MiniMaxM2Model(nn.Module):
                 if is_pp_missing_parameter(name, self):
                     continue
 
+                # Remap qkv_proj.[kv]_scale to attn.[kv]_scale
+                if name.endswith((".k_scale", ".v_scale")):
+                    remapped_name = maybe_remap_kv_scale_name(name, params_dict)
+                    if remapped_name is not None and remapped_name in params_dict:
+                        param = params_dict[remapped_name]
+                        weight_loader = getattr(
+                            param, "weight_loader", default_weight_loader
+                        )
+                        weight_loader(param, loaded_weight)
+                        break
+
                 param = params_dict[name]
                 weight_loader = param.weight_loader
                 weight_loader(param, loaded_weight, shard_id)