Update git submodules

* Update docs/submodules/releng from branch 'master'
  to d5d800b8c36137ccfe1ac1703c23c1f1039f72fb
  - Swith lf-pod4-2 to verify Functest master

    Change-Id: I413f157da63246dbbc251513c824e2ffa921367a
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 519d103..d5d800b 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 519d10316417eb5e5c1ea3c9c296bb48cc8eb86d
+Subproject commit d5d800b8c36137ccfe1ac1703c23c1f1039f72fb