Update git submodules

* Update docs/submodules/armband from branch 'stable/euphrates'
  - u/fuel: Bump & rebase for netconfig rm via salt

    Change-Id: I0de153ef4e5a71f350d29a90ae4c79b863d676eb
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 939bdcd9a425674eaca2d9556da4f34f11b0e23f)

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 8d69d6d..b23e59e 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 8d69d6d274cfda09b86ac43eb75d002d7f9ba00e
+Subproject commit b23e59e31cddaa44361d429c2325a0f648c583c2