fix pm-data v2.8 pipelines

Change-Id: I1c11740ad9bb24fada006733100671f461bf47d1
diff --git a/jjb/voltha-e2e.yaml b/jjb/voltha-e2e.yaml
index 68a7b3f..233fa7e 100755
--- a/jjb/voltha-e2e.yaml
+++ b/jjb/voltha-e2e.yaml
@@ -723,6 +723,7 @@
 
       - 'voltha-periodic-test':
           name: 'periodic-voltha-pm-data-test-bbsim-2.8'
+          pipeline-script: 'voltha/voltha-2.8/bbsim-tests.groovy'
           code-branch: 'voltha-2.8'
           extraHelmFlags: '--set kafka.externalAccess.enabled=true,kafka.externalAccess.service.type=NodePort,kafka.externalAccess.service.nodePorts[0]=30201,kafka.externalAccess.service.domain=127.0.0.1'
           time-trigger: "H H/23 * * *"
@@ -790,6 +791,7 @@
 
       - 'voltha-periodic-test':
           name: 'periodic-voltha-multiple-olts-pm-data-test-bbsim-2.8'
+          pipeline-script: 'voltha/voltha-2.8/bbsim-tests.groovy'
           code-branch: 'voltha-2.8'
           extraHelmFlags: '--set onu=2,pon=2 --set kafka.externalAccess.enabled=true,kafka.externalAccess.service.type=NodePort,kafka.externalAccess.service.nodePorts[0]=30201,kafka.externalAccess.service.domain=127.0.0.1'
           olts: 2