drivers: net: b44: Fix typo in returning multicast stats

nstat->multicast refers to received packets, not transmitted as
is returned here. Change it so that received packet stats are
given.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/b44.c

@@ -1697,7 +1697,7 @@ static struct rtnl_link_stats64 *b44_get_stats64(struct net_device *dev,
 				     hwstat->tx_underruns +
 				     hwstat->tx_excessive_cols +
 				     hwstat->tx_late_cols);
-		nstat->multicast  = hwstat->tx_multicast_pkts;
+		nstat->multicast  = hwstat->rx_multicast_pkts;
 		nstat->collisions = hwstat->tx_total_cols;
 
 		nstat->rx_length_errors = (hwstat->rx_oversize_pkts +