Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 22f1a3476e9de9c6006e0f45091ff7d389219820
  - Enable Kali ocatavia and tempest_heat

    Change-Id: Ibbf78d566dbbd3787af4ddd6b0e8257186b999af
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index c437a6e..22f1a34 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit c437a6e0004798130cb4f3fc823dc804bda44ca6
+Subproject commit 22f1a3476e9de9c6006e0f45091ff7d389219820