Update git submodules

* Update docs/submodules/armband from branch 'master'
  - Fuel-OSTF: Arch dependent Cirros ssh password

    For arm64 "gocubsgo" will be used
    For x86 it will use "cubswin:)"

    JIRA: ARMBAND-250

    Change-Id: Id580168cee1dd7c52876f2781b7cbbf733169ef3
    Signed-off-by: Alexandru Nemes <alexandru.nemes@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index a53792b..ff1b400 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit a53792b11c7e56272a3c33d1cb43148ddebc7aa9
+Subproject commit ff1b400a69aad4cce484690b22dfc408615217f3