Update git submodules

* Update docs/submodules/armband from branch 'stable/euphrates'
  - u/fuel: Bump & rebase for state break & retry

    While at it, return true for all armband states that apply patches
    which are also providing a post-patching file hash.

    Change-Id: I303a2e142a8a9925f6630b53891ddc7bb0399453
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit e68b725920bd313df0ca65a77b27c8de6a6e2937)

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 9c944c3..773b474 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 9c944c3aaf78360f47a8bf845c1dda0079fa3fc4
+Subproject commit 773b4745ade96e65f3b9e9707d6ea8b861dd5554