If OSH_INFRA_PATH is never used in the openstack-helm-infra repository, as all the references are using relative paths. The keystone script is not using a relative path, and relies on OSH_INFRA_PATH to be defined to work. This is a problem, because when it is not defined, the expected path for ldap chart is /ldap, which is an incorrect path. This fixes the problem by ensuring the path is relative. Change-Id: I04a8d5c074b7c1e6fa66617bbb907f2ad4dcb3af