VOL-3139 - add name helper template

- includes the {{ .Release.Name }} be default
- can be overriden with
  - nameOverride: override the {{ .Release.Name }}-{{ .Chart.Name }}
    porition
  - fullNameOverride: override everything

Change-Id: I0e1dbccba8f1e484e13e6f9ae43ea35ce97aac4f
diff --git a/voltha-adapter-openonu/values.yaml b/voltha-adapter-openonu/values.yaml
index c803098..a614794 100644
--- a/voltha-adapter-openonu/values.yaml
+++ b/voltha-adapter-openonu/values.yaml
@@ -14,6 +14,9 @@
 ---
 use_openonu_adapter_go: false
 
+nameOverride: ~
+fullNameOverride: ~
+
 # Default overrides
 defaults:
   log_level: "WARN"