dobsonj: prow.sh: enable -csi.checkpathcmd option in csi-sanity

JobBuild
148
05-07 21:35
pull-kubernetes-csi-csi-release-tools 1390782322701242368
pull-kubernetes-csi-release-tools-csi-test 1390782322738991104
pull-kubernetes-csi-release-tools-external-provisioner 1390782322780934144
pull-kubernetes-csi-release-tools-external-snapshotter 1390782322814488576