Pointing helm charts to latest image tags. updating chart version. Also updating umbrella helm chart

Change-Id: I3feae96b5fe342881848571c371a2423b17495da
diff --git a/omec/5g-control-plane/Chart.yaml b/omec/5g-control-plane/Chart.yaml
index ffddc44..b816e26 100644
--- a/omec/5g-control-plane/Chart.yaml
+++ b/omec/5g-control-plane/Chart.yaml
@@ -8,7 +8,7 @@
 name: 5g-control-plane
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 0.3.0
+version: 0.3.1
 
 dependencies:
   - name: mongodb