Update git submodules

* Update docs/submodules/releng from branch 'master'
  - [fuel] Propagate INSTALLER_VERSION

    Change-Id: I590c904acd8b71e6c3cea93b85cc9d23f79c3225
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index bcd0ecb..1cfa467 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit bcd0ecb50359270320bfd41ecd443a2a6528af3f
+Subproject commit 1cfa467118efaf88d74aaa8b22b2daf247caa7c2