playbook/ors: add -i hosts option in cron tasks

playbook/roles/ors/tasks/main.yml

@@ -24,10 +24,10 @@
     cron: name="Launch ors playbook every 3 hours" state=absent
 
   - name: Install periodic cron
-    cron: name="Launch ors playbook periodically" minute="*/10" hour="*" job='cd /opt/upgrader/playbook && PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin ansible-playbook ors.yml 2>> /opt/upgrader/latest_ors.log >> /opt/upgrader/latest_ors.log'
+    cron: name="Launch ors playbook periodically" minute="*/10" hour="*" job='cd /opt/upgrader/playbook && PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin ansible-playbook ors.yml -i hosts 2>> /opt/upgrader/latest_ors.log >> /opt/upgrader/latest_ors.log'
 
   - name: Install reboot cron
-    cron: name="Launch ors playbook at reboot" special_time=reboot job='sleep 20 && cd /opt/upgrader/playbook && PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin ansible-playbook ors.yml 2>> /opt/upgrader/startup_ors.log >> /opt/upgrader/startup_ors.log'
+    cron: name="Launch ors playbook at reboot" special_time=reboot job='sleep 20 && cd /opt/upgrader/playbook && PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin ansible-playbook ors.yml -i hosts 2>> /opt/upgrader/startup_ors.log >> /opt/upgrader/startup_ors.log'
 
   - name: Install rm-tmp-lte script
     copy: src=rm-tmp-lte dest={{ install_folder }} owner=root mode=770