netvsc: fix typo on statistics

Return the correct tx_errors stats in netvsc.
Reviewed-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NSimon Xiao <sixiao@microsoft.com>
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/hyperv/netvsc_drv.c

@@ -920,7 +920,7 @@ static void netvsc_get_stats64(struct net_device *net,
 	}
 
 	t->tx_dropped	= net->stats.tx_dropped;
-	t->tx_errors	= net->stats.tx_dropped;
+	t->tx_errors	= net->stats.tx_errors;
 
 	t->rx_dropped	= net->stats.rx_dropped;
 	t->rx_errors	= net->stats.rx_errors;