Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Skip the deployment for upstream and prototype changes"
  - xci: Skip the deployment for upstream and prototype changes

    Changes coming to these do not impact the framework so there is
    no need to run full verification for these.

    Change-Id: Ia9f8f4772a94cb0761c49ff27933798265831fa4
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 7791c88..18fa393 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 7791c8816f3f268fecb39c8bce245a3dfc6c901d
+Subproject commit 18fa393967bcb95ebdd4f32f55385ba65dbe9635