Update git submodules

Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [ovn-ha] ctl: neutron: Add msg cluster pillar

    `system.neutron.control.cluster`, unlike
    `system.neutron.control.openvswitch.cluster` does not provide
    neutron:server:message_queue:members pillar data, letting it
    default to the wrong values (single rabbit instance on the same node).

    This led to neutron.conf on ctl nodes using:
    `transport_url=rabbit://openstack:***@172.16.10.35:5672//openstack`
    instead of
    `transport_url=rabbit://openstack:***@172.16.10.28:5672,...//openstack`

    Change-Id: Iad4b709d555b2bafafeb75fdecb831f7d4f5a504
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>