Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 1ec776e0003434909ff34c50562c378b01afa9fc
  - Stop filtering jjbs

    A few jobs won't be executed becasue of missing runners (Functest)

    Change-Id: I4cff35efc548855e9c735ec770bf391e3cfe1957
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 50859d4..1ec776e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 50859d48eaab6df333e965bffc74b3b72ce70470
+Subproject commit 1ec776e0003434909ff34c50562c378b01afa9fc