Update git submodules

Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [IDF] infra VMs: Allow trunking mgmt network

    Due to design limitations in idf.net_config, for a hybrid POD we need
    to trunk certain network segments for the VMs running on the
    jumpserver, including mgmt network going to cfg01, mas01.

    Add mgmt VLAN support for cfg01, mas01 gated by a flag in IDF:
      idf.fuel.jumphost.trunks.mgmt: True

    JIRA: FUEL-338

    Change-Id: I6903f9b70e5f8a88618bce28e21c7c0631a05065
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>