Fixed gating pipeline

Change-Id: I5ff928dbc86c8ba369ec5470b47a44b296f8e27e
diff --git a/gating-pipeline.groovy b/gating-pipeline.groovy
index 59e6332..dd39609 100644
--- a/gating-pipeline.groovy
+++ b/gating-pipeline.groovy
@@ -64,6 +64,7 @@
 
 @NonCPS
 def _getGerritChangeStatus(gerritName, gerritHost, gerritChange){
+   def ssh = new com.mirantis.mk.Ssh()
    def output = ssh.agentSh(String.format("ssh -p 29418 %s@%s gerrit query --format=JSON change:%s", gerritName, gerritHost, gerritChange))
    def jsonSlurper = new JsonSlurper()
    def gerritChangeObject = jsonSlurper.parseText(output)