engine : Updated user information in OpenLDAP are not propagated to engine

User information updated in open ldap is not reflected
on the engine.

Change-Id: Ie011829e189e36bebfa2c06959b1c8a2e2038cbc
Bug-Url: https://bugzilla.redhat.com/998479
Signed-off-by: Ravi Nori <rnori@redhat.com>