Use openstack command to replace "nova flavor-*" commands
Use openstack command to replace "nova flavor-*" commands

Change-Id: Ieeaf1b6ddd4f97d738f1d5af1208c5fc6b6f2a4b
Implements: blueprint use-openstack-command

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