[install] keystone database needs explicit population for SUSE
[install] keystone database needs explicit population for SUSE

It is true that init script is doing it, but in install guide,
we are not starting openstack-keystone service.

Change-Id: I11c26c9f255c3d2be95afbc3010645d5974b86db

openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals