Update git submodules

* Update docs/submodules/armband from branch 'stable/danube'
  - 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>
    (cherry picked from commit ff1b400a69aad4cce484690b22dfc408615217f3)

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 35010f9..b11ee1d 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 35010f98f2badb7a21cc20f8e7ac708f83e3922a
+Subproject commit b11ee1d7c13dd3ba42c36d7f73f99ac097ed534d