add dhcp6 client to wap profile

modules/profiles/wap.nix

@@ -45,6 +45,7 @@ in
     ../hostapd
     ../bridge
     ../dhcp4c
+    ../dhcp6c
     { config.services = hostaps; }
   ];
 
@@ -72,6 +73,11 @@ in
       dependencies = [ config.services.hostname ];
     };
 
+    services.dhcpc6 = svc.dhcp6c.client.build {
+      interface = config.services.int;
+      dependencies = [ config.services.hostname ];
+    };
+
     services.defaultroute4 = svc.network.route.build {
       via = "$(output ${config.services.dhcpc} router)";
       target = "default";