Update git submodules

* Update docs/submodules/armband from branch 'master'
  - Merge "Update the committer list"
  - Update the committer list

    Change-Id: Ib514e90dd994700f2319f36b94cbb014d74838c3
    Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index af6004a..b2cc542 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit af6004a3c1a645f9a05f66eb788ff4df913a5e81
+Subproject commit b2cc542dabde2ff8e7217e251d54d80d810c8e4b