Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Apex: updates for post-danube"
  - Apex: updates for post-danube

    Changes Include:
     - Functest in daily only executes on successful deployment
     - os-odl-bgpvpn-ha added to daily master
     - daily sub-job renamed to match CI evolution

    Change-Id: If34d013416b6d6c7fdfb4d0cdff652222e02462e
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 27c49c9..3a64264 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 27c49c9bafc6a0a25759ae473d4c71cf87f58d90
+Subproject commit 3a6426485a588469fad41113cc735801a74d3643