Make cluster domain configurable for OMEC charts

Also, added chart icon.

Change-Id: I34d806b72fdbad058cab02732b5678900e5f5290
diff --git a/omec/omec-data-plane/Chart.yaml b/omec/omec-data-plane/Chart.yaml
index 11ea877..21f163a 100644
--- a/omec/omec-data-plane/Chart.yaml
+++ b/omec/omec-data-plane/Chart.yaml
@@ -17,4 +17,6 @@
 apiVersion: v1
 description: OMEC data plane services
 name: omec-data-plane
-version: 0.1.5
+icon: https://guide.opencord.org/logos/cord.svg
+
+version: 0.1.6