Update git submodules

Update git submodules

* Update docs/submodules/fuel from branch 'stable/euphrates'
  - Merge "[baremetal] ODL: Move ODL VCP VM to kvm02" into stable/euphrates
  - [baremetal] ODL: Move ODL VCP VM to kvm02

    Balance VM distribution on the 3 kvm nodes, as kvm02 has 4 VCP VMs
    while kvm{01,03} have 5 VCP VMs each (without ODL).
    Instead of spawning the ODL VCP VM on kvm03, move it to kvm02.

    Change-Id: Id03b9453ee7c15cd6785c0bc073a38b87034aede
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commmit 62135fd2367ced881bf99dc157fdb4536633d4a0)