bnx2: Use proper counter for net_device_stats->multicast.

We were using the wrong tx multicast counter instead of the rx multicast
counter.
Reported-by: Peter Snellman <peter.snellman@cinnober.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bnx2.c

@@ -6631,7 +6631,7 @@ bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
 		GET_64BIT_NET_STATS(stat_IfHCOutOctets);
 
 	net_stats->multicast =
-		GET_64BIT_NET_STATS(stat_IfHCOutMulticastPkts);
+		GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts);
 
 	net_stats->collisions =
 		GET_32BIT_NET_STATS(stat_EtherStatsCollisions);