Update git submodules

* Update docs/submodules/releng from branch 'master'
  to b455a8c573b0dac07ccef81f044a2302a8342283
  - Typo

    Change-Id: I0784f1b070d8e49bdb1781c08d28488571e5775f
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 09c62ce..b455a8c 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 09c62ce05efd70ae247de55c1646466951208333
+Subproject commit b455a8c573b0dac07ccef81f044a2302a8342283