Update git submodules

* Update docs/submodules/armband from branch 'master'
  - p/fuel: Re-parametrize Openstack public net

    Instead of passing public net via local_env, deduce its range
    based on compute external IPs.

    Change-Id: Ib736921c1d0f4002ea33677e7d794fd3e22001ba
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index a6f5b5b..33a0cd3 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit a6f5b5b13b3d9b62a9ee13d7bf19b695802bc5ce
+Subproject commit 33a0cd38130e1b8ff466572baa1b8f92ddc5aef3