Update git submodules

* Update docs/submodules/armband from branch 'master'
  - ci/deploy.sh: Do not pass SSH_KEY to Fuel deploy

    OPNFV Jenkins jobs for Fuel and Armband define the variable SSH_KEY,
    which gets passed down to Fuel's ci/deploy.sh, leading to a conflict
    between the original key and the destination key paths, which in
    the default case overlap, leading to a deploy-breaking fault.

    Fuel@OPNFV is not affected by this behavior due to a "sudo" call
    that does not pass down enviroment variables (i.e. without `-E`).

    Change-Id: I291966ee177d828bf1e59c213c9da40eae13ab6b
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 081dc46..7b47bc5 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 081dc460f888f9e2b7f9e2491f9c529c4dc48eed
+Subproject commit 7b47bc53348e37927e4459ea6aed6d2327c87aeb