[CustomOp] support TensorList for dispatchFFNCombine (#5665)

### What this PR does / why we need it?
To support tensorList for dispatch_ffn_combine, to adjust eplb

### Does this PR introduce _any_ user-facing change?
N/A

### How was this patch tested?
Single Operator Testing

- vLLM version: v0.13.0
- vLLM main:
2f4e6548ef

---------

Signed-off-by: lhchg <lhao_cheng@163.com>
Co-authored-by: lihaocheng <lihaosheng1@h-partners.com>

csrc/torch_binding_meta.cpp

@@ -196,11 +196,11 @@ void batch_matmul_transpose(const at::Tensor &tensor_a, const at::Tensor &tensor
 
 at::Tensor& dispatch_ffn_combine_meta(
     const at::Tensor& x,
-    const at::Tensor& weight1,
-    const at::Tensor& weight2,
+    const at::TensorList& weight1,
+    const at::TensorList& weight2,
     const at::Tensor& expert_idx,
-    const at::Tensor& scale1,
-    const at::Tensor& scale2,
+    const at::TensorList& scale1,
+    const at::TensorList& scale2,
     const at::Tensor& probs,
     c10::string_view group,
     int64_t max_output_size,