Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [ha] Fix tenant NIC OS config for VLAN ranges

    Previous commits added support for tenant VLAN range parametrization,
    yet failed to accomodate the new VLAN range representation ('M:N') in
    existing `linux.network.interfaces` reclass configuration.

    This lead to the silent removal of <nic_private>.<vlan_private> from
    interfaces file and for `br-mesh` to try to use <nic_private> instead
    of <nic_private>.<vlan_private>, conflicting with `br-floating`.

    Stick to using the first VLAN in the tenant range.

    JIRA: FUEL-365

    Change-Id: I88f7263159f1742dba3b6e36649c9344f2932c5f
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index ed7bb35..cfc5988 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit ed7bb355c93af5c163d5ae7926012652021abf75
+Subproject commit cfc5988be48d1317244e71fd7919480db18745d4