ipvlan: ipvlan depends on INET and IPV6

This driver uses ip_out_local() and ip6_route_output() which are
defined only if CONFIG_INET and CONFIG_IPV6 are enabled respectively.

Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ipvlan/ipvlan.h

@@ -23,8 +23,9 @@
 #include <linux/if_vlan.h>
 #include <linux/ip.h>
 #include <linux/inetdevice.h>
+#include <net/ip.h>
+#include <net/ip6_route.h>
 #include <net/rtnetlink.h>
-#include <net/gre.h>
 #include <net/route.h>
 #include <net/addrconf.h>