Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Create daily Fraser jobs"
  - Create daily Fraser jobs

    It doesn't assign any Fraser job to (virtual) pods.
    It also stops checking deployement what is duplicating healthcheck.

    Change-Id: Ia370380e20b833d03f09b2098478a8930e4f8dc0
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 16e8175..f273443 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 16e81759b9df83ad814eb28290fcb741883bb7ee
+Subproject commit f273443f52fc378a46a62b46a4985dc4ae9ed5d5