Start only specific openstack services instead of supervisor-openstack
move cmon and contrail-hamon starting out of galera setup, start it after setup_openstack, else the cmon interferes in the openstack provisioning.
correct the port(mysql haproxy port) used for connecting to mysql by cmon service in cmon.cnf

Change-Id: I7db343f74577e193254d829c57587129821341b5