ip_tunnels: use tos and ttl fields also for IPv6

Rename the ipv4_tos and ipv4_ttl fields to just 'tos' and 'ttl', as they'll
be used with IPv6 tunnels, too.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/openvswitch/vport.c

@@ -604,8 +604,8 @@ int ovs_tunnel_get_egress_info(struct ip_tunnel_info *egress_tun_info,
 	 */
 	__ip_tunnel_info_init(egress_tun_info,
 			      fl.saddr, tun_key->u.ipv4.dst,
-			      tun_key->ipv4_tos,
-			      tun_key->ipv4_ttl,
+			      tun_key->tos,
+			      tun_key->ttl,
 			      tp_src, tp_dst,
 			      tun_key->tun_id,
 			      tun_key->tun_flags,