VOL-3881: Support configuration of OMCI timeout value

Change-Id: I81fbf4be9c927215009aaab1a1a7ae9b8fb06adc
diff --git a/voltha-adapter-openonu/values.yaml b/voltha-adapter-openonu/values.yaml
index d62ba8f..cd7ec06 100644
--- a/voltha-adapter-openonu/values.yaml
+++ b/voltha-adapter-openonu/values.yaml
@@ -31,6 +31,8 @@
   max_timeout_interadapter_comm: "30s"
   # timeout for ONU reconciling
   max_timeout_reconciling: "10s"
+  # timeout for OMCI channel
+  omci_timeout: "3s"
   # kv store timeout
   adapter_open_onu:
     timeout: "5s"
@@ -104,6 +106,7 @@
   incremental_evto_update: '{{ .Values.global.incremental_evto_update }}'
   max_timeout_interadapter_comm: '{{ .Values.global.max_timeout_interadapter_comm }}'
   max_timeout_reconciling: '{{ .Values.global.max_timeout_reconciling }}'
+  omci_timeout: '{{ .Values.global.omci_timeout }}'
   kv_store_timeout: '{{ .Values.global.adapter_open_onu.timeout }}'
   kv_store_data_prefix: 'service/{{ .Values.global.stack_name }}_voltha'
   topics: