Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Publish Xtesting daily jobs

    They verify the rolling containers.
    xtesting.yaml has been generated via collivier.xtesting (ansible role).

    Change-Id: Idf7cce42bee15174e4242891a102f6599026b3b7
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index c94c4f4..9341d2e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit c94c4f4bf1d220be7cf910b346d72114a05dfc72
+Subproject commit 9341d2e37026c0d65ede57cd417e91db93ea2e03