Update git submodules

* Update docs/submodules/releng from branch 'master'
  - xci: Do not run deployment for doc updates

    Change-Id: Ic914bc5bf11e2246f214990353c804688d6e43d9
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 43517ac..d7aa449 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 43517ac62c33dffafd4a5bfc2d9a3af1350f62ce
+Subproject commit d7aa449c9c9e5f74ed4908305027a7b69e858e03