Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 528bf1684d7008e9b0134d9f4883d4e8c29d3669
  - Merge "Fix Elements path"
  - Fix Elements path

    Change-Id: I552355a7758ff95c9b2ce03d6f8a5deac152dc16
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 58d4e8a..528bf16 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 58d4e8ac35875c27a538a3a26e95c8ec2d041793
+Subproject commit 528bf1684d7008e9b0134d9f4883d4e8c29d3669