qlcnic: Fix ethtool statistics for 82xx adapter

o Fix miscalculation of statistics length
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c

@@ -149,7 +149,8 @@ static const char qlcnic_gstrings_test[][ETH_GSTRING_LEN] = {
 
 static inline int qlcnic_82xx_statistics(void)
 {
-	return QLCNIC_STATS_LEN + ARRAY_SIZE(qlcnic_83xx_mac_stats_strings);
+	return ARRAY_SIZE(qlcnic_device_gstrings_stats) +
+	       ARRAY_SIZE(qlcnic_83xx_mac_stats_strings);
 }
 
 static inline int qlcnic_83xx_statistics(void)