Adding ETCD timeout configuration to olt and onu golang adapters

Change-Id: Icd2715899867d0758f6102904009b66d15d84faf
diff --git a/voltha-adapter-openonu/values.yaml b/voltha-adapter-openonu/values.yaml
index e3baff1..47e1da3 100644
--- a/voltha-adapter-openonu/values.yaml
+++ b/voltha-adapter-openonu/values.yaml
@@ -28,6 +28,9 @@
   # timeout for deadline for interadapter communication
   # should be in format as expected by parseDuration golang.
   max_timeout_interadapter_comm: "30s"
+  # kv store timeout
+  adapter_open_onu:
+    timeout: "5s"
   topics:
     core_topic: "rwcore"
     adapter_open_onu_topic: "brcm_openomci_onu"
@@ -68,6 +71,7 @@
   log_level: '{{ .Values.defaults.log_level }}'
   incremental_evto_update: '{{ .Values.defaults.incremental_evto_update }}'
   max_timeout_interadapter_comm: '{{ .Values.defaults.max_timeout_interadapter_comm }}'
+  kv_store_timeout: '{{ .Values.defaults.adapter_open_onu.timeout }}'
 
 images:
   adapter_open_onu: