Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 8440e9008cf5565de379d2c47a4269fa758bf377
  - Remove former python package names

    Change-Id: I0594c3b93e963aedd4e219f33267b8310c802d4d
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index d3e05cf..8440e90 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit d3e05cf395d4a65b5684574669ea8d8b3be037a9
+Subproject commit 8440e9008cf5565de379d2c47a4269fa758bf377