Update git submodules

* Update docs/submodules/armband from branch 'stable/euphrates'
  - u/fuel: Bump for second neutron formula fixup

    Change-Id: I52cb9720a452c4fa7b71a9135de700f5c601132d
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 90b9c3793db3b70ddb705924a7e823fd2ae9bb92)

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 9050324..c5c9e23 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 90503244803cc01bbbe4e4898998eaff3ebb3b32
+Subproject commit c5c9e23e0df08e46862b4c2a8deff825b76a9f13