Update git submodules

* Update docs/submodules/releng from branch 'master'
  - ovsnfv: Disable daily jobs

    Change-Id: I88a6c87379ce330a90564bf174258d5e09d75c46
    Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 0431f1d..26ccce4 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 0431f1d23f053fd17b6c89502226325b42f3bafa
+Subproject commit 26ccce49e2c1b6191ce19bbe3defc7ef7e5cd9c7