Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Fix name in setup.py"
  - Fix name in setup.py

    It fixes duplicated names between setup.py and modules/setup.py.

    We could also have considered listing releng utils as scripts in
    modules/setup.py which is mandatory if another OPNFV project needs
    them (eg Functest before [1] was merged).
    They could be required in case of functional or unit testing too.

    [1] https://gerrit.opnfv.org/gerrit/#/c/35199/

    Change-Id: Ic77f4e46d6d3396f9891b73105a0eb7aa037754f
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index da66c5f..9b0a74b 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit da66c5fe3b78001f3f6300f063ae320f16bcc9bc
+Subproject commit 9b0a74b28d1bc9129d6f83ca931f04245f2a5730