Update git submodules

* Update docs/submodules/armband from branch 'stable/fraser'
  - u/fuel: Bump & rebase for vlan parametrization

    Change-Id: If8b154835b4ac18117108c6a0070a65f6db3e011
    Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>
    (cherry picked from commit 5491081be01a3ec9cedc5a8f57a07510ef951a3f)

diff --git a/docs/submodules/armband b/docs/submodules/armband
index b58c6ae..8e052cc 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit b58c6aee590cc39ce9c1b16809a52daddfb4fa0e
+Subproject commit 8e052ccc117aa4fa8e38911aa2f303bd63f40ba3