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

Change-Id: Iaad15dfd4e756cba551413c799dd2a14578211a9
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index c293685..262023d 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha"
-version: "2.9.1"
+version: "2.9.2"
 description: "A Helm chart for Voltha based on K8S resources in Voltha project"
 keywords:
   - "onf"