Update git submodules

* Update docs/submodules/releng/builder from branch 'master'
  to 3a7b3a30a58d3ec6f90ec8789121ae2fba77664b
  - Pull global-jjb quickfix for 60 minute timeout

    Increases maven jobs to have a build timeout of 60 by default.
    Infra overall seems slower and we keep having to bump this so
    lets do it in global-jjb.

    Change-Id: I341688ecbf5e81eed62034bcd781aad58cce4f7c
    Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>

diff --git a/docs/submodules/releng/builder b/docs/submodules/releng/builder
index a2212d42de3e9efbeeae72d883a63069deed90ac..3a7b3a30a58d3ec6f90ec8789121ae2fba77664b 160000 (submodule)
--- a/docs/submodules/releng/builder
+++ b/docs/submodules/releng/builder
@@ -1 +1 @@
-Subproject commit a2212d42de3e9efbeeae72d883a63069deed90ac
+Subproject commit 3a7b3a30a58d3ec6f90ec8789121ae2fba77664b