netdev: drivers should make ethtool_ops const

No need to put ethtool_ops in data, they should be const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tehuti.c b/drivers/net/tehuti.c
index 918d4c9..ec9dfb2 100644
--- a/drivers/net/tehuti.c
+++ b/drivers/net/tehuti.c
@@ -2428,7 +2428,7 @@
  */
 static void bdx_ethtool_ops(struct net_device *netdev)
 {
-	static struct ethtool_ops bdx_ethtool_ops = {
+	static const struct ethtool_ops bdx_ethtool_ops = {
 		.get_settings = bdx_get_settings,
 		.get_drvinfo = bdx_get_drvinfo,
 		.get_link = ethtool_op_get_link,