[VLM] feat: true on policy for vlm + fsdp (#14636)

Co-authored-by: Xinyuan Tong <115166877+JustinTong0323@users.noreply.github.com>

python/sglang/srt/models/qwen2_moe.py

@@ -506,6 +506,7 @@ class Qwen2MoeDecoderLayer(nn.Module):
         forward_batch: ForwardBatch,
         residual: Optional[torch.Tensor],
         captured_last_layer_outputs: Optional[List[torch.Tensor]] = None,
+        **kwargs,
     ) -> Tuple[torch.Tensor, torch.Tensor]:
 
         hidden_states, residual = (
@@ -514,6 +515,7 @@ class Qwen2MoeDecoderLayer(nn.Module):
                 residual,
                 forward_batch,
                 captured_last_layer_outputs=captured_last_layer_outputs,
+                **kwargs,
             )
         )