[EDGEPOD-226] Add installing strongswan to router role

Also fixed ansible-lint failures

Change-Id: I78fbab0a9e2f45ea4f5989c255f09b47ef01bdcc
diff --git a/aether-playbook/roles/reset/tasks/main.yml b/aether-playbook/roles/reset/tasks/main.yml
index ffb8922..043bec9 100644
--- a/aether-playbook/roles/reset/tasks/main.yml
+++ b/aether-playbook/roles/reset/tasks/main.yml
@@ -23,6 +23,7 @@
   retries: 4
   delay: 5
   until: remove_all_containers.rc == 0
+  changed_when: False
   tags: k8s
 
 - name: Remove directories
@@ -45,4 +46,5 @@
     - /var/log/containers
     - /var/log/pods
     - /var/run/calico
+  changed_when: False
   tags: k8s