DNS: correct loopback prefix.

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

dns-server/named.conf.options

@@ -32,7 +32,7 @@ options {
 	listen-on-v6 { any; };
 
 	allow-recursion {
-		127.0.0.1/8;
+		127.0.0.0/8;
 		::1/128;
 	};
 };

dns-server/named.conf.options.recursor

@@ -32,7 +32,7 @@ options {
 	listen-on-v6 { any; };
 
 	allow-recursion {
-		127.0.0.1/8;
+		127.0.0.0/8;
 		::1/128;
 
 		// Entries from pillar