setup-quantum-in-keystone shoukd be executed only if manage_neutron is set as 'yes'.
setup-quantum-in-keystone shoukd be executed only if manage_neutron is
set as 'yes'.

Change-Id: I5e000ddf5086db280a7d849c6a7bf3ed016dc33a

Juniper/contrail-provisioning,Juniper/contrail-provisioning