Update git submodules

* Update docs/submodules/releng from branch 'master'
  to e1333a0f1052f5787e2c4639dee16cf0bb738c73
  - Make stream generic

    Change-Id: I581116df1c196014a5c6263c0f4a05b0e75e1d89
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 005ee12..e1333a0 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 005ee12976a365950bdb4ee11279436d84dda026
+Subproject commit e1333a0f1052f5787e2c4639dee16cf0bb738c73