Fixed missing dist backend

Signed-off-by: greg-kwasniewski1 <213329731+greg-kwasniewski1@users.noreply.github.com>

Author: greg-kwasniewski1

tensorrt_llm/_torch/auto_deploy/utils/sharding_utils.py

@@ -764,6 +764,7 @@ def apply(self, gm: GraphModule, node: Node) -> None:
             rank=self.rank,
             world_size=self.world_size,
             add_dist=self.dist_op is not None,
+            dist_backend=self.dist_backend,
             min_local_shape=self.min_local_shape,
             fused_weight_dims=self.fused_weight_dims,
             quantization_cb=self.quantization_cb,