net/mlx5: Fix driver load error flow when firmware is stuck

When wait for firmware init fails, previous code would mistakenly
return success and cause inconsistency in the driver state.

Fixes: 6c780a0267b8 ("net/mlx5: Wait for FW readiness before initializing command interface")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/main.c

@@ -1020,7 +1020,7 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv,
 	if (err) {
 		dev_err(&dev->pdev->dev, "Firmware over %d MS in pre-initializing state, aborting\n",
 			FW_PRE_INIT_TIMEOUT_MILI);
-		goto out;
+		goto out_err;
 	}
 
 	err = mlx5_cmd_init(dev);