Update git submodules

* Update docs/submodules/releng from branch 'master'
  to abe0272b8f19caf7928d85597b6c1fa54fd7c936
  - Build multiarch images

    Change-Id: I26aad0b07797814b2d9fbeafa4e9ec1d5040be11
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index ee07d05..abe0272 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit ee07d05941cbfe6faff2502cf270eeda157511fa
+Subproject commit abe0272b8f19caf7928d85597b6c1fa54fd7c936