Update git submodules

* Update docs/submodules/releng from branch 'master'
  to c437a6e0004798130cb4f3fc823dc804bda44ca6
  - Temporarily exclude Kali ocatavia and tempest_heat

    We are adding features in SUT in //.

    Change-Id: If7a830cec5b8168647fbb10d96a24b7e29e98b9d
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 46cb2e8..c437a6e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 46cb2e82a2b561b9b4c40030670c89c0b875209c
+Subproject commit c437a6e0004798130cb4f3fc823dc804bda44ca6