Do not verify change is any of the builds is aborted

Change-Id: Ie23ac8a74763cb87924d15d990c851c4327246e3
diff --git a/jenkins/gerrit-verifier-change.groovy b/jenkins/gerrit-verifier-change.groovy
index ff8cf2c..d8ee790 100644
--- a/jenkins/gerrit-verifier-change.groovy
+++ b/jenkins/gerrit-verifier-change.groovy
@@ -103,6 +103,10 @@
 }
 
 def getVerified(acc, res) {
+  if(res == null || res == Result.ABORTED) {
+    return 0
+  }
+
   switch(acc) {
         case 0: return 0
         case 1: