net: netcp: ethss: re-use stats handling code for 2u hardware

The stats block in 2u cpsw hardware is similar to the one on nu
and hence handle it in a similar way by using a macro that includes
2u hardware as well.
Signed-off-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/netcp_ethss.c

@@ -3398,7 +3398,7 @@ static int set_gbenu_ethss_priv(struct gbe_priv *gbe_dev,
 	gbe_dev->num_stats_mods = gbe_dev->max_num_ports;
 	gbe_dev->et_stats = gbenu_et_stats;
 
-	if (IS_SS_ID_NU(gbe_dev))
+	if (IS_SS_ID_MU(gbe_dev))
 		gbe_dev->num_et_stats = GBENU_ET_STATS_HOST_SIZE +
 			(gbe_dev->max_num_slaves * GBENU_ET_STATS_PORT_SIZE);
 	else