Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Bump JJB Build Timeout to 60 Minutes

    Without caching enable or when updating the JJB version all jobs get
    reconfigured, which can take upwards of 30 minutes. Setting this to a
    higher value should keep the build from being failed while still
    running.

    Change-Id: Ie2ed11da919ed9114700423591ebfaef94e61c88
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index eb8807b..5224551 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit eb8807b84954e41c39ce6c6f413d15c853dcf3a0
+Subproject commit 5224551580e0ef572a0b95b08eb7ceb67b1fe5fc