Unbreak 1.5 deployment with kubelet

1.5 kubelet fails to start when using unknown params

roles/kubernetes/node/templates/kubelet.j2

@@ -13,8 +13,9 @@ KUBELET_HOSTNAME="--hostname-override={{ ansible_hostname }}"
 --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }} \
 --kube-reserved cpu={{ kubelet_cpu_limit }},memory={{ kubelet_memory_limit|regex_replace('Mi', 'M') }} \
 --node-status-update-frequency={{ kubelet_status_update_frequency }} \
+{% if kube_version | version_compare('v1.6', '>=') %}
 --enable-cri={{ kubelet_enable_cri }} --cgroups-per-qos={{ kubelet_cgroups_per_qos }} \
- --enforce-node-allocatable='{{ kubelet_enforce_node_allocatable }}'{% endset %}
+--enforce-node-allocatable='{{ kubelet_enforce_node_allocatable }}' {% etndif %}{% endset %}
 
 {# DNS settings for kubelet #}
 {% if dns_mode == 'kubedns' %}