Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: OSA: Move all the OSA specific playbooks to the NFVI directory"
  - xci: OSA: Move all the OSA specific playbooks to the NFVI directory

    Move all the playbooks that only make sense for OpenStack-Ansible
    deployments to the NFVI/OSA directory where they belong. This further
    disassociates XCI from OSA.

    Change-Id: Iab8b6dc81d9025a1d85608a98fb1eee0f1c6a69f
    Signed-off-by: Markos Chandras <mchandras@suse.de>
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 1b238dd..1a68730 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 1b238dde764f68404489b21245e0b1494cb06e8e
+Subproject commit 1a68730ab76b3fad4395f1cca0d3590c0507d378