Remove MaxPermSize jvm arg

- starting from jdk 8 the arg has been deprecated
- this fixes all broken sonar jobs [1]

[1] check the 'last analysis' on the [sonarcloud.io page](https://sonarcloud.io/organizations/onap/projects)
Issue-ID: AAI-4027
Change-Id: I5919db4501cd465d28589a467d9d33a47cab6a37
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>
diff --git a/jjb/dcaegen2/dcaegen2-services-mapper.yaml b/jjb/dcaegen2/dcaegen2-services-mapper.yaml
index b46c409..2f84aed 100644
--- a/jjb/dcaegen2/dcaegen2-services-mapper.yaml
+++ b/jjb/dcaegen2/dcaegen2-services-mapper.yaml
@@ -48,7 +48,7 @@
     branch: "master"
     mvn-settings: "dcaegen2-services-mapper-settings"
     mvn-goals: "clean install"
-    mvn-opts: "-Xmx1024m -XX:MaxPermSize=256m"
+    mvn-opts: "-Xmx1024m -XX:MaxMetaspaceSize=256m"
 
 - project:
     name: dcaegen2-services-mapper-clm