Set default nodePort for Voltha services

Sometimes randomly assigned port number conflicts with the port numbers that
is resereved by other apps.

Change-Id: I6838ee3aee80d1cc83980d225c702c5f3c6d12f5
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index bf2f5ab..9abb829 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -16,5 +16,5 @@
 description: A Helm chart for Voltha based on K8S resources in Voltha project
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 1.0.6
+version: 1.0.7
 appVersion: 1.7.0