Adding possibility to customize the domain name when using Ingress in VOLTHA

Change-Id: Iaad15dfd4e756cba551413c799dd2a14578211a9
diff --git a/voltha/values.yaml b/voltha/values.yaml
index 6fa6fcc..0d6671d 100644
--- a/voltha/values.yaml
+++ b/voltha/values.yaml
@@ -14,6 +14,7 @@
 ---
 nameOverride: ~
 fullNameOverride: ~
+fullHostnameOverride: ~
 
 # Default Values
 # The following are the default values used for every container in the
@@ -109,6 +110,7 @@
     nginx.ingress.kubernetes.io/backend-protocol: "GRPC"
     nginx.ingress.kubernetes.io/grpc-backend: "true"
   enableVirtualHosts: false
+  baseHostname: local
   hosts:
     - host:
       paths: