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/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c
index fbf4645..2be49c8 100644
--- a/drivers/net/arm/ep93xx_eth.c
+++ b/drivers/net/arm/ep93xx_eth.c
@@ -762,7 +762,7 @@
 	return mii_link_ok(&ep->mii);
 }
 
-static struct ethtool_ops ep93xx_ethtool_ops = {
+static const struct ethtool_ops ep93xx_ethtool_ops = {
 	.get_drvinfo		= ep93xx_get_drvinfo,
 	.get_settings		= ep93xx_get_settings,
 	.set_settings		= ep93xx_set_settings,