Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: Bump kubespray version to 2.7.0

    installer-type:kubespray
    deploy-scenario:k8-nosdn-nofeature

    Change-Id: I6b59df5112e9b3459bf3147557f5f22fe0fb778b
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index ecab61f..dc1248f 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit ecab61fe9aa4e07df4334c7039b8fe6e85636488
+Subproject commit dc1248fe7d989e9103cea7bfa8fd59814b86e0f1