Recorrect builder for ccsdk-oran maven-stage job

change builder back to centos7-builder-4c-4g
skip docker build

Signed-off-by: ecaiyanlinux <martin.c.yan@est.tech>
Change-Id: I87951bc97ee41d0eb08946a3ceffa3cbafa658d3
Issue-ID: CCSDK-2699
diff --git a/jjb/ccsdk/ccsdk-oran.yaml b/jjb/ccsdk/ccsdk-oran.yaml
index 8e5a3e9..f154f4a 100644
--- a/jjb/ccsdk/ccsdk-oran.yaml
+++ b/jjb/ccsdk/ccsdk-oran.yaml
@@ -7,8 +7,9 @@
       - gerrit-maven-merge:
           cron: '@daily'
       - gerrit-maven-stage:
-          build-node: ubuntu1804-docker-8c-8g
+          build-node: centos7-builder-4c-4g
           sign-artifacts: true
+          mvn-opts: '-Ddocker.skip=true'
           maven-versions-plugin: true
           cron: ''
       - gerrit-maven-docker-stage: