Update git submodules

* Update docs/submodules/releng/builder from branch 'master'
  to 4fb7a8e34c23aec99b08645df72f5b7966c0df6d
  - Merge "Make Openstack Network Service names editable"
  - Make Openstack Network Service names editable

    - This patch allows user to change
      the network services loaded in a job.
    - This will help enable the Queens job that
      requires new services to be loaded.
    - It also addressess the problem of enabling
      compute service in the control node.

    Change-Id: Ie6fa9eec931df1f6a3627dd3ef8d91bdacda5a85
    Signed-off-by: gvrangan <venkatrangang@hcl.com>

diff --git a/docs/submodules/releng/builder b/docs/submodules/releng/builder
index dadeba12d22b2215532e8e2fdcf472c1ce9ff54f..4fb7a8e34c23aec99b08645df72f5b7966c0df6d 160000 (submodule)
--- a/docs/submodules/releng/builder
+++ b/docs/submodules/releng/builder
@@ -1 +1 @@
-Subproject commit dadeba12d22b2215532e8e2fdcf472c1ce9ff54f
+Subproject commit 4fb7a8e34c23aec99b08645df72f5b7966c0df6d