Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 3c2efb3fda1e9dc773b0c6a8658dea51fd3a1555
  - Reorder all Functest Kubernetes agents

    Change-Id: I8398687213f9e13dff60585132b4e9556bab5760
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 44f4ec2..3c2efb3 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 44f4ec225d0d7d9a82c37f700fcd37e243f46eb3
+Subproject commit 3c2efb3fda1e9dc773b0c6a8658dea51fd3a1555