Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - reclass: Drop MaaS public IP and interface

    MaaS node does not need to be exposed to the public network; instead
    the management IP should be enough to access the MaaS dashboard.

    So, drop 'infra_maas_node01_external_address' reclass param, together
    with its OPNFV PDF param, 'opnfv_infra_maas_node01_external_address'.

    This allows us to move compute public IPs back to .{2,3} instead of
    .{101,102}, where we moved them during 'pod_config.yml' addition.

    While at it, fix a minor duplicate 'name' param for 'br-mgmt' bridge
    on kvm nodes.

    Change-Id: Ie9fcf5924d7aa37b666f42c968687d73b51a8278
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 187d1c8..ee4d89f 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 187d1c87dfcc86a6b36dfca2c061144dab35bd4d
+Subproject commit ee4d89f2803085bdd4a7f3b365e40ec9366c25a9