Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - spec: create k8-calico-onap scenario

    Spec file for the addition of a new XCI scenario which deploys Open
    Networking Automation Platform (ONAP) on top Kubernetes deployment
    through ONAP Operations Manager (OOM) tool.

    Change-Id: I01385fdeeb942154d9cce630552bd3e7713d3cdb
    Signed-off-by: Victor Morales <victor.morales@intel.com>
    Signed-off-by: Jack Morgan <jack.morgan@intel.com>
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 1587bba..6b6a564 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 1587bba364bc67000b849a5f5af21472e0966435
+Subproject commit 6b6a564f3479ab834d9a55d4b6e180601e8e1c6a