Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 979e8ac6ac7acf78730a2eee199e0e8f78a316e1
  - Merge "Add xrally_kubernetes_full in all gates"
  - Add xrally_kubernetes_full in all gates

    Change-Id: I7a3747acbe241d70550883002d690c3d2c848288
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index c58a9f8..979e8ac 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit c58a9f854e5a54b8373480dda5fd0ccac5bcafd1
+Subproject commit 979e8ac6ac7acf78730a2eee199e0e8f78a316e1