Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Increase functest job timeout"
  - Increase functest job timeout

    Functest job timeout is not enough
    Functest jobs are aborted after 480 min

    Change-Id: I74dfe12b08e322aad53e10d5808b5b739b8d9ce2
    Signed-off-by: Delia Popescu <delia.popescu@enea.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index ad80446..1c76d92 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit ad80446126ee6c72ee07709b33fd016c5ea07e01
+Subproject commit 1c76d923e2800d063d09c61bb73c06b6a495dcd0