Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[Dovetail] Fixing cinder process name on Fuel"
  - [Dovetail] Fixing cinder process name on Fuel

    Fixing the process name of Cinder on Fuel deployments.

    JIRA: DOVETAIL-688

    Change-Id: Ide672e6bafedeecc6b99a99263147fec5fab44ef
    Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index a00d94e..525aa95 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit a00d94e18f211f7d90280961decd91cf1632c448
+Subproject commit 525aa95f876fe68385ad09bce6a2865003669f9f