Update git submodules

* Update docs/submodules/armband from branch 'master'
  - p/fuel: Rebase, drop upstream clone

    Now that Fuel@OPNFV supports submodule patching again, bring back
    `make fuel-patches-import`.

    Change-Id: Ic6f9870d94b6d302f1ebcdc21d54a83f62910af9
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index e598628..c5bfbf1 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit e598628cf9603a3484d574ab5cb0c99311e2ddff
+Subproject commit c5bfbf1f4bababbbf885414d0c6bdd9f01cae900