Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Reschedule the armband jobs

    Make the jobs run more often as we need more results in CI with the
    approach to MS5 and the release

    Change-Id: I7d868b004ebdb9dee5122d3cd92504290a7ce5f2
    Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 5708615..4f75c73 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 57086159e02ce7518c4ec26c7dd5433f07ea3991
+Subproject commit 4f75c73ff6fd762b191f75c2b8da6136dfad14ce