enic: bug fix: included MAC drops in rx_dropped netstat

Bug fix: included MAC drops in rx_dropped netstat.  Also track Rx trunctations
stat at the MAC

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index cfe94b2..f7c5b33 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -99,6 +99,7 @@
 	____cacheline_aligned struct vnic_rq rq[1];
 	unsigned int rq_count;
 	int (*rq_alloc_buf)(struct vnic_rq *rq);
+	u64 rq_truncated_pkts;
 	u64 rq_bad_fcs;
 	struct napi_struct napi;
 	struct net_lro_mgr lro_mgr;