netdev: Use default implementation of ethtool_ops::get_link where possible

Various drivers are using implementations of ethtool_ops::get_link
that are equivalent to the default ethtool_op_get_link().  Change
them to use that instead.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/iseries_veth.c

diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index 38e15be..63ac531 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -1009,15 +1009,10 @@
 	return 0;
 }
 
-static u32 veth_get_link(struct net_device *dev)
-{
-	return 1;
-}
-
 static const struct ethtool_ops ops = {
 	.get_drvinfo = veth_get_drvinfo,
 	.get_settings = veth_get_settings,
-	.get_link = veth_get_link,
+	.get_link = ethtool_op_get_link,
 };
 
 static const struct net_device_ops veth_netdev_ops = {