[SDC] allow concurrent builds

allow concurrency for SDC CSIT jobs, since these are now part of verify we need to be able to run more than one at a time

Issue-ID: SDC-3465
Signed-off-by: ChrisC <christophe.closset@intl.att.com>
Change-Id: I442f94c30768f1448ae9f9c8dcd62c96a4e110a0
diff --git a/jjb/sdc/sdc-csit.yaml b/jjb/sdc/sdc-csit.yaml
index b8c3582..9bb7982 100644
--- a/jjb/sdc/sdc-csit.yaml
+++ b/jjb/sdc/sdc-csit.yaml
@@ -9,6 +9,7 @@
                 mvn-goals: clean install
                 mvn-params: '-Dnpm.registry=https://nexus3.onap.org/repository/npm.public/ -Ddocker.skip.push=true -P docker,all-for-integration-tests-only'
                 maven-versions-plugin: true
+                concurrent: true
           - '{project-name}-merge-verification-maven-{stream}':
                 build-node: ubuntu1804-docker-8c-16g
                 container-public-registry: 'nexus3.onap.org:10001'