Adding ETCD timeout configuration to olt and onu golang adapters

Change-Id: Icd2715899867d0758f6102904009b66d15d84faf
diff --git a/voltha-adapter-openolt/values.yaml b/voltha-adapter-openolt/values.yaml
index c0c73ce..d72e734 100644
--- a/voltha-adapter-openolt/values.yaml
+++ b/voltha-adapter-openolt/values.yaml
@@ -22,6 +22,8 @@
   image_tag: ~
   image_org: "voltha/"
   image_pullPolicy: "Always"
+  adapter_open_olt:
+    timeout: "5s"
   topics:
     core_topic: "rwcore"
     adapter_open_olt_topic: "openolt"
@@ -81,6 +83,7 @@
 
 adapter_open_olt:
   log_level: '{{ .Values.defaults.log_level }}'
+  kv_store_timeout: '{{ .Values.defaults.adapter_open_olt.timeout }}'
 
 images:
   adapter_open_olt: