Update git submodules

* Update docs/submodules/armband from branch 'master'
  - u/fuel: Bump & rebase for _orchestration.conf fix

    Change-Id: Ifb4ba7e0bb06b214e682e76ec3204c7e5d411f05
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index b2cc542..f9e8716 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit b2cc542dabde2ff8e7217e251d54d80d810c8e4b
+Subproject commit f9e87162f57a5fcc7cfa6f68cbd818c3306d3dec