bird: Use anycasted IPv6 DNS resolver instead of Google one in RAdv protocol.

Signed-off-by: Maximilian Wilhelm <max@rfc2324.org>

bird/radv.conf

@@ -6,7 +6,7 @@ protocol radv {
 	export all;
 	trigger ::/0;
 
-	rdnss 2001:4860:4860::8888;
+	rdnss 2a03:2260:2342:f251::53;
 
 {% for site in node_config.get ('sites') %} 
   {%- set iface = 'br-' ~ site %}