Using latest gui, api and sd-core in roc-umbrella helm-charts
Cherry-picked from master.

Change-Id: I4f7ce99a85d74d2b9c129bec536e77d4191a460e
diff --git a/aether-roc-gui-v2/values.yaml b/aether-roc-gui-v2/values.yaml
index 5a3d0dc..8c42114 100644
--- a/aether-roc-gui-v2/values.yaml
+++ b/aether-roc-gui-v2/values.yaml
@@ -10,7 +10,7 @@
 
 image:
   repository: onosproject/aether-roc-gui
-  tag: v0.9.14
+  tag: v0.9.15
   pullPolicy: IfNotPresent
   pullSecrets: []