paramaterizing pipeline script to run for verify_api_tests

Change-Id: I4e994a2c5afd47ef49ff0fd5da7da163336e4372
diff --git a/jjb/verify/vtn-service.yaml b/jjb/verify/vtn-service.yaml
index a1816c5..feab0a7 100644
--- a/jjb/verify/vtn-service.yaml
+++ b/jjb/verify/vtn-service.yaml
@@ -17,3 +17,4 @@
           dependency-jobs: 'verify_vtn-service_licensed'
       - 'api-test':
           dependency-jobs: 'verify_vtn-service_sonarqube'
+          pipeline_script: 'all-xos-api-test-helm.groovy'