CI: restore zyxel pipeline & enable multi olt job

Change-Id: I91590cfa9d528474ac7f2427d73a14f53c81be34
Signed-off-by: Amaia <amaia.depablo@bisdn.de>
diff --git a/jjb/voltha-test/voltha.yaml b/jjb/voltha-test/voltha.yaml
index 2fa1158..2b97cdb 100644
--- a/jjb/voltha-test/voltha.yaml
+++ b/jjb/voltha-test/voltha.yaml
@@ -32,7 +32,7 @@
           build-node: 'jenkins-worker-01.berlin-lab'
           config-pod: 'berlin-community-pod-1-multi-olt'
           cluster: 'pod-1.berlin-lab.lfbroadband.org'
-          disable-job: true
+          disable-job: false
           name-extension: '_DT'
           work-flow: 'DT'
           profile: '1T8GEM'
@@ -47,7 +47,7 @@
           build-node: 'jenkins-worker-01.berlin-lab'
           config-pod: 'berlin-community-pod-1-multi-olt'
           cluster: 'pod-1.berlin-lab.lfbroadband.org'
-          disable-job: true
+          disable-job: false
           release: 'master'
           branch: 'master'
           pipeline-branch: 'master'