Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Deploy 2 Computes if triggered by promote jobs

    Change-Id: I5431e1c86d9f56b5192880dc9e7eb6f2f0ab61ee
    Signed-off-by: Jamo Luhrsen <jluhrsen@redhat.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 6d275e8..20dffea 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 6d275e8c16f706f12838c0970b148054df30512c
+Subproject commit 20dffea627b102ba5588f249ef910c2ea0cd879f