Update git submodules

* Update docs/submodules/armband from branch 'stable/euphrates'
  - p/fuel: Backport base image explicit kpartx

    Change-Id: I458406fa9361a44b29f52c5840d579328257ee5e
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 69d16cf..11f5bc3 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 69d16cfc0103cce375a4d23f46f63da1bf9114c9
+Subproject commit 11f5bc3ca9191039b9b22e2da8a6e29538d2f6ea