net: introduce and use netdev_features_t for device features sets

v2:	add couple missing conversions in drivers
	split unexporting netdev_fix_features()
	implemented %pNF
	convert sock::sk_route_(no?)caps

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 1825629..0b5c18f 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -165,7 +165,8 @@
 	return 0;
 }
 
-static u32 xenvif_fix_features(struct net_device *dev, u32 features)
+static netdev_features_t xenvif_fix_features(struct net_device *dev,
+	netdev_features_t features)
 {
 	struct xenvif *vif = netdev_priv(dev);