[CLAMP] Update charts for release 5.1.3

Update the chart values.yaml to refer to the latest clamp BE/FE images.
Also the memory and timeout settings have been changed (no heap limit)

Issue-ID: CLAMP-953
Signed-off-by: sebdet <sebastien.determe@intl.att.com>
Change-Id: I543509760c7e3124d068c26b325de9280220194d
diff --git a/kubernetes/clamp/components/clamp-backend/templates/deployment.yaml b/kubernetes/clamp/components/clamp-backend/templates/deployment.yaml
index f86c636..e0b441b 100644
--- a/kubernetes/clamp/components/clamp-backend/templates/deployment.yaml
+++ b/kubernetes/clamp/components/clamp-backend/templates/deployment.yaml
@@ -65,7 +65,7 @@
           - -c
           - |
             export $(grep '^cadi_' {{ .Values.certInitializer.credsPath }}/org.onap.clamp.cred.props | xargs -0)
-            java -Djava.security.egd=file:/dev/./urandom -Xms256m -Xmx1g -jar ./app.jar
+            java -Djava.security.egd=file:/dev/./urandom -XX:MinRAMPercentage=50 -XX:MaxRAMPercentage=75 -jar ./app.jar
           {{- else }}
           args:
           - ""