change variable layout

defaults/main.yml

@@ -1,4 +1,7 @@
 ---
-def_network:
+network_hostname: ''
-  disable_ipv6: false
+network_fqdn: ''
-network: {}
+network_defaultif: ''
+network_disable_ipv6: false
+
+network_interfaces: {}

tasks/config.yml

@@ -28,8 +28,7 @@
     owner: root
     group: root
     mode: 0644
-  with_dict: '{{ network.config }}'
+  with_dict: '{{ network_interfaces }}'
   when: item.key in ansible_interfaces
   notify:
     - network_restart
-