Increase cpu/mem for policy/engine stage job

This job JUnits need to have more memory/cpu to finish.

Will need to use the docker version for 8c 8g, there is
no builder.

Issue-ID: CIMAN-33
Change-Id: I9f0b43d4a5bf00200ef94daad11975d9e5f53af6
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
diff --git a/jjb/policy/policy-engine.yaml b/jjb/policy/policy-engine.yaml
index e49aed8..ab7b8aa 100644
--- a/jjb/policy/policy-engine.yaml
+++ b/jjb/policy/policy-engine.yaml
@@ -15,7 +15,7 @@
          disabled: true
       - gerrit-maven-stage:
           sign-artifacts: true
-          build-node: centos7-builder-4c-4g
+          build-node: centos7-docker-8c-8g
           maven-versions-plugin: true
       - gerrit-maven-docker-stage:
           build-node: ubuntu1604-docker-8c-8g