Fix conflicting clusterIP fact between coredns and nodelocaldns (#6195)

roles/kubernetes-apps/ansible/tasks/nodelocaldns.yml

 ---
 - name: Kubernetes Apps | set up necessary nodelocaldns parameters
   set_fact:
-    clusterIP: >-
+    primaryClusterIP: >-
       {%- if dns_mode in ['coredns', 'coredns_dual'] -%}
       {{ skydns_server }}
       {%- elif dns_mode == 'manual' -%}
@@ -21,9 +21,9 @@
   vars:
     forwardTarget: >-
       {%- if secondaryclusterIP is defined and dns_mode == 'coredns_dual' -%}
-      {{ clusterIP }} {{ secondaryclusterIP }}
+      {{ primaryClusterIP }} {{ secondaryclusterIP }}
       {%- else -%}
-      {{ clusterIP }}
+      {{ primaryClusterIP }}
       {%- endif -%}
     upstreamForwardTarget: >-
       {%- if resolvconf_mode == 'host_resolvconf' and upstream_dns_servers is defined and upstream_dns_servers|length > 0 -%}