Sync docker image versions from manifest

Sync docker image versions from docker manifest commit
790ef2b3b4aad73d9fb776b08aa15f5e40dcfcd4

Change-Id: I72b97ed17e7db352463edb22d557ea239e2b406d
Issue-ID: OOM-1053
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/kubernetes/portal/charts/portal-app/values.yaml b/kubernetes/portal/charts/portal-app/values.yaml
index f9081f6..c316450 100644
--- a/kubernetes/portal/charts/portal-app/values.yaml
+++ b/kubernetes/portal/charts/portal-app/values.yaml
@@ -27,7 +27,7 @@
 #################################################################
 # application image
 repository: nexus3.onap.org:10001
-image: onap/portal-app:v2.2.0
+image: onap/portal-app:2.2.0
 pullPolicy: Always
 
 # default number of instances