net/ixgbe: fix flow entry access after freeing

The original code use a heap pointer after it is freed.
This patch fix it.

Fixes: a14de8b ("net/ixgbe: destroy consistent filter")
Cc: stable@dpdk.org

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
Reviewed-by: Haiyue Wang <haiyue.wang@intel.com>

drivers/net/ixgbe/ixgbe_flow.c

@@ -3437,6 +3437,7 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
 			TAILQ_REMOVE(&ixgbe_flow_list,
 				ixgbe_flow_mem_ptr, entries);
 			rte_free(ixgbe_flow_mem_ptr);
+			break;
 		}
 	}
 	rte_free(flow);