[VOL-4285] Helm charts for grpc migration

Change-Id: Ifa3423b43b236bab6c9de437b1dd7045069fe5de
diff --git a/voltha-stack/values.yaml b/voltha-stack/values.yaml
index 0bd6b77..7f69868 100644
--- a/voltha-stack/values.yaml
+++ b/voltha-stack/values.yaml
@@ -18,6 +18,7 @@
   log_level: "WARN"
   voltha_infra_name: "voltha-infra"
   voltha_infra_namespace: "infra"
+  core_endpoint: "{{ .Release.Name }}-{{ .Values.global.stack_name }}-core.{{ .Release.Namespace }}.svc:55558"
   log_correlation:
     enabled: true
   tracing:
@@ -34,12 +35,8 @@
   rw_core:
     kv_store_data_prefix: 'service/voltha/{{ .Release.Name }}_{{ .Values.global.stack_name }}'
     stack_id: "{{ .Values.global.stack_name }}"
-    topics:
-      core_topic: "{{ .Release.Name }}_{{ .Values.global.stack_name }}_rwcore"
   services:
     kafka:
-      adapter:
-        address: "{{ .Values.global.voltha_infra_name }}-kafka.{{ .Values.global.voltha_infra_namespace }}.svc:9092"
       cluster:
         address: "{{ .Values.global.voltha_infra_name }}-kafka.{{ .Values.global.voltha_infra_namespace }}.svc:9092"
     etcd:
@@ -51,13 +48,10 @@
   enabled: true
   adapter_open_onu:
     kv_store_data_prefix: 'service/voltha/{{ .Release.Name }}_{{ .Values.global.stack_name }}'
-    topics:
-      core_topic: "{{ .Release.Name }}_{{ .Values.global.stack_name }}_rwcore"
-      adapter_open_onu_topic: "{{ .Release.Name }}_{{ .Values.global.stack_name }}_brcm_openomci_onu"
+    endpoints:
+      address: '{{ .Release.Name }}-voltha-adapter-openonu-api'
   services:
     kafka:
-      adapter:
-        address: "{{ .Values.global.voltha_infra_name }}-kafka.{{ .Values.global.voltha_infra_namespace }}.svc:9092"
       cluster:
         address: "{{ .Values.global.voltha_infra_name }}-kafka.{{ .Values.global.voltha_infra_namespace }}.svc:9092"
     etcd:
@@ -69,13 +63,10 @@
   enabled: true
   adapter_open_olt:
     kv_store_data_prefix: 'service/voltha/{{ .Release.Name }}_{{ .Values.global.stack_name }}'
-    topics:
-      core_topic: "{{ .Release.Name }}_{{ .Values.global.stack_name }}_rwcore"
-      adapter_open_olt_topic: "{{ .Release.Name }}_{{ .Values.global.stack_name }}_openolt"
+    endpoints:
+      address: '{{ .Release.Name }}-voltha-adapter-openolt-api'
   services:
     kafka:
-      adapter:
-        address: "{{ .Values.global.voltha_infra_name }}-kafka.{{ .Values.global.voltha_infra_namespace }}.svc:9092"
       cluster:
         address: "{{ .Values.global.voltha_infra_name }}-kafka.{{ .Values.global.voltha_infra_namespace }}.svc:9092"
     etcd: