Update git submodules

* Update docs/submodules/releng from branch 'master'
  to e527ba9e63233de374ef22e25039f353be5a77e1
  - Add read the docs jobs for cirv

    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
    Change-Id: I2265de4b34a045b35102c08bef5b05b156d60db0

diff --git a/docs/submodules/releng b/docs/submodules/releng
index cae0eb7..e527ba9 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit cae0eb7b39d9111858e653263d8377af287a5f1c
+Subproject commit e527ba9e63233de374ef22e25039f353be5a77e1