added reverted env zabbix item to jenkins slave
added reverted env zabbix item to jenkins slave

Change-Id: Iada7f6a63d08ed36a3b50bbbf382d8fe5aa61db8
Partial-Bug: #1524285

fuel-infra/puppet-manifests,fuel-infra/puppet-manifests,fuel-infra/puppet-manifests,fuel-infra/puppet-manifests