Added Power switch to GPON ONUs for ADTRAN OLT

Change-Id: I837c03a1089808ff7185e55131c9387c2fa370d6
diff --git a/jjb/cord-test/voltha.yaml b/jjb/cord-test/voltha.yaml
index cab4b12..9aeda20 100644
--- a/jjb/cord-test/voltha.yaml
+++ b/jjb/cord-test/voltha.yaml
@@ -613,7 +613,7 @@
           branch: 'voltha-2.6'
           test-repo: 'voltha-system-tests'
           profile: '1T8GEM'
-          power-switch: False
+          power-switch: True
           oltAdapterAppLabel: 'adapter-adtran-olt'
           pipeline-script: 'voltha-dt-physical-functional-tests.groovy'