VOL-2313 Enable hardware test on +2 Code-Review

Change-Id: Ifb8399c62627c00918d8a6f6270499b60799ae49
diff --git a/jjb/voltha-e2e.yaml b/jjb/voltha-e2e.yaml
index 3c3c81d..6a26897 100644
--- a/jjb/voltha-e2e.yaml
+++ b/jjb/voltha-e2e.yaml
@@ -314,6 +314,9 @@
           trigger-on:
             - comment-added-contains-event:
                 comment-contains-value: '^hardware test$'
+            - comment-added-event:
+                approval-category: 'Code-Review'
+                approval-value: '+2'
           projects:
             - project-compare-type: REG_EXP
               project-pattern: '^(voltha-go|voltha-openolt-adapter|voltha-openonu-adapter|voltha-api-server|voltha-system-tests)$'