Update git submodules

* Update docs/submodules/releng from branch 'master'
  to eb8bcf335ac1f3629017b2cd21e19fb636b22630
  - Merge "Fix env regexes"
  - Fix env regexes

    Change-Id: Ie124ea3fb1d0643c6ca26950f3e703f740330ac0
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index a6b65e4..eb8bcf3 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit a6b65e43912afc64fb6236f532ee20f5dcf3f6e4
+Subproject commit eb8bcf335ac1f3629017b2cd21e19fb636b22630