net: stmmac: rx queue to dma channel mapping fix

In hardware configurations where multiple queues are active,
the rx queue needs to be mapped into a dma channel, even if
a single rx queue is used.

Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

@@ -2001,7 +2001,7 @@ static void stmmac_mtl_configuration(struct stmmac_priv *priv)
 		stmmac_configure_cbs(priv);
 
 	/* Map RX MTL to DMA channels */
-	if (rx_queues_count > 1 && priv->hw->mac->map_mtl_to_dma)
+	if (priv->hw->mac->map_mtl_to_dma)
 		stmmac_rx_queue_dma_chan_map(priv);
 
 	/* Enable MAC RX Queues */