Update git submodules

* Update docs/submodules/armband from branch 'stable/euphrates'
  - u/fuel: Bump & rebase for apache mod list fix

    Change-Id: Ia719a04a88533e55f713d955b5999130b5fc635a
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit aa165106e2f9819b4c350f6fd3b7547b005f8400)

diff --git a/docs/submodules/armband b/docs/submodules/armband
index e20d301..78b7f67 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit e20d301155b817855fb10332f6431681c34626ce
+Subproject commit 78b7f67ae15d1985a03852a7eef16bf7d7970ee5