Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[baremetal] Re-assign mgmt network to proxy nodes"
  - [baremetal] Re-assign mgmt network to proxy nodes

    - extend arch-specific list of predefined VM iface names (2 -> 3);
    - add extra vnet iface for prx0* VCP VMs, connected to br-ctl (mgmt);
    - add mgmt address to pod_config.yml template (and sample);
    - add mgmt address to reclass.storage prx nodes;

    JIRA: FUEL-302

    Change-Id: I17ce65eade7f69219fc27264363364e3c47d8f3f
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index bed4865..6692c89 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit bed48658ab74621497baec331d7cdd2c1ef51062
+Subproject commit 6692c895ba7df012fce4ee1f54f6450e2f13c950