Update git submodules

* Update docs/submodules/releng from branch 'master'
  - jjb: xci: xci-start-new-vm: Fix gerrit variable for git SHA

    The gerrit variable for the git SHA is GERRIT_PATCHSET_REVISION instead
    of GERRIT_CHANGE_ID. We also need to export the XCI_ANSIBLE_PARAMS
    variable.

    Change-Id: I206820f1155a4876fb7d87cc0b5ae1b8afb06bd6
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 1b95992..5ce903b 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 1b95992f4d6162f33a10e86ea3a16fbd015efe75
+Subproject commit 5ce903b099b47ffca3b50323e2396517a098bef7