net: mscc: ocelot: rename aggr_count to num_ports_in_lag

It makes it a bit easier to read and understand the code that deals with
balancing the 16 aggregation codes among the ports in a certain LAG.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mscc/ocelot.c

@@ -1298,8 +1298,8 @@ static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
 	/* Now, set PGIDs for each active LAG */
 	for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
 		struct net_device *bond = ocelot->ports[lag]->bond;
+		int num_ports_in_lag = 0;
 		unsigned long bond_mask;
-		int aggr_count = 0;
 		u8 aggr_idx[16];
 
 		if (!bond || (visited & BIT(lag)))
@@ -1311,8 +1311,7 @@ static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
 			// Destination mask
 			ocelot_write_rix(ocelot, bond_mask,
 					 ANA_PGID_PGID, port);
-			aggr_idx[aggr_count] = port;
-			aggr_count++;
+			aggr_idx[num_ports_in_lag++] = port;
 		}
 
 		for_each_aggr_pgid(ocelot, i) {
@@ -1320,7 +1319,7 @@ static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
 
 			ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i);
 			ac &= ~bond_mask;
-			ac |= BIT(aggr_idx[i % aggr_count]);
+			ac |= BIT(aggr_idx[i % num_ports_in_lag]);
 			ocelot_write_rix(ocelot, ac, ANA_PGID_PGID, i);
 		}