Update git submodules

* Update docs/submodules/releng/builder from branch 'master'
  to 1222f9035311bb5f890e1a0f4800b9bb8a0575b0
  - Merge "Switch bgpcep to using new gjjb maven-merge jobs"
  - Switch bgpcep to using new gjjb maven-merge jobs

    Works around issue with javadoc and JAVA_HOME which Jenkins
    Maven project types do not appear to configure.

    Change-Id: Id441d6761bb5c3226f67bba40c1b6ebcf05f20b0
    Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>

diff --git a/docs/submodules/releng/builder b/docs/submodules/releng/builder
index cd3bd4b18ca266f8ad4c86cb46a516b22e970089..1222f9035311bb5f890e1a0f4800b9bb8a0575b0 160000 (submodule)
--- a/docs/submodules/releng/builder
+++ b/docs/submodules/releng/builder
@@ -1 +1 @@
-Subproject commit cd3bd4b18ca266f8ad4c86cb46a516b22e970089
+Subproject commit 1222f9035311bb5f890e1a0f4800b9bb8a0575b0