Fix profile to 1T8G for Zyxel XGSPON build job

Change-Id: Ia81c7c6ed765a3b0f66c9b4284b61841eb5c4c4e
diff --git a/jjb/voltha-test/voltha.yaml b/jjb/voltha-test/voltha.yaml
index 9e29b85..2fb8c49 100644
--- a/jjb/voltha-test/voltha.yaml
+++ b/jjb/voltha-test/voltha.yaml
@@ -626,6 +626,7 @@
           pipeline-script: 'voltha/master/physical-build.groovy'
           VolthaEtcdPort: 9999
           waitTimerForOltUp: 360
+          profile: '1T8GEM'
           time: '5'
 
         # Berlin POD test job - zyxel xgsgpon master versions: uses tech profile on voltha branch