Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 06cf542c6b85ad2512f35962cb32a6d36d12f03b
  - -y when install curl

    Change-Id: I5e8fe62f622167dad41c754fa8b9de266a1a3d09
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 20cb2c4..06cf542 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 20cb2c4f270cbfacffacc56de1642d8762a00cf7
+Subproject commit 06cf542c6b85ad2512f35962cb32a6d36d12f03b