Update git submodules

* Update docs/submodules/armband from branch 'stable/euphrates'
  - u/fuel: Bump & rebase for lab proxy support

    Change-Id: I7730923c80500f558702b0406dc9b983ba8f5b27
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index d1de887..9ae9224 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit d1de8877810d0ab0a6e0381e370f5eaa3b07e52d
+Subproject commit 9ae9224167df484e79da620680b95fcfa349d644