Fix APPC GC Maven Merge Job

Add JAVA and MVN opts set for merge job.

Issue-ID: CIMAN-33

Signed-off-by: Houa Yang <hyang@contractor.linuxfoundation.org>
Change-Id: I4bc2730aa96aa0ca39c81b50112449e5b18145f2
diff --git a/jjb/appc/appc-master.yaml b/jjb/appc/appc-master.yaml
index 80c568d..16a7172 100644
--- a/jjb/appc/appc-master.yaml
+++ b/jjb/appc/appc-master.yaml
@@ -9,6 +9,8 @@
           java-opts: "-Xmx4000m -XX:MaxPermSize=256m"
       - '{project-name}-{stream}-merge-java':
           build-node: ubuntu1604-builder-8c-8g
+          mvn-opts: "-Xmx4000m -XX:MaxPermSize=256m"
+          java-opts: "-Xmx4000m -XX:MaxPermSize=256m"
       - gerrit-maven-stage:
           sign-artifacts: true
           build-node: centos7-docker-8c-8g