Fix snapshot publish

Issue-ID: SO-2097
Change-Id: I61786979f3fccc170ef51e1c46beababc749ac42
Signed-off-by: Brian Freeman <bf1936@att.com>
diff --git a/jjb/so/so.yaml b/jjb/so/so.yaml
index cc9522b..d1f7217 100644
--- a/jjb/so/so.yaml
+++ b/jjb/so/so.yaml
@@ -18,7 +18,7 @@
       - gerrit-maven-docker-stage:
           build-node: ubuntu1604-docker-8c-8g
           maven-versions-plugin: true
-          mvn-params: '-Dmaven.test.skip=true'
+          mvn-params: '-P docker -Dmaven.test.skip=true'
           container-public-registry: 'nexus3.onap.org:10001'
           container-staging-registry: 'nexus3.onap.org:10003'
     project: 'so'