Update git submodules

* Update docs/submodules/armband from branch 'master'
  - u/fuel: Bump & rebase for keyserver patch rebase

    Change-Id: Ic1767de8dfd58aa2fb3f788be22f6f66191864c8
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index f9e8716..db0fc03 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit f9e87162f57a5fcc7cfa6f68cbd818c3306d3dec
+Subproject commit db0fc039e923b03efbe645b59c75b4e01cecf8f6