Update git submodules

* Update docs/submodules/armband from branch 'master'
  - u/fuel: Bump & rebase for cmp network fix

    Change-Id: I2d445a78ee6d25b826afe3c42d433b9c4af3d09d
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index b7d5373..cdff247 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit b7d537303fa171c642025f5c53ed381fd6cb7c3d
+Subproject commit cdff247b728bd6d00ce7ed7f6994fd0688304fc1