add sepc for step load agent env
add sepc for step load agent env

Change-Id: If89a813fe1dadbd71070d3298aed521fadd2d9fb

cloudfoundry-incubator/bosh-vcloud-cpi-release,wcamarao/bosh-vcloud-cpi-release,wcamarao/bosh-vcloud-cpi-release,wcamarao/bosh-vcloud-cpi-release,cloudfoundry-incubator/bosh-vcloud-cpi-release,cloudfoundry-incubator/bosh-vcloud-cpi-release