Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Fix project name"
  - Fix project name

    Not working currently:
    https://build.opnfv.org/ci/job/doctor-verify-sample-master/68/console

    Change-Id: I5fa065eda3f8e8eb8ae6b988ec593c1d37d0579a
    Signed-off-by: Tomi Juvonen <tomi.juvonen@nokia.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 5197861..7d7c908 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 5197861b967f74573a3e3d255db6d4b0516b33e6
+Subproject commit 7d7c908e182272fdeaa830703a6edf47c1031254