Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: configure-nfs: Add SUSE support

    Add ability to restart the NFS server on SUSE hosts.

    Change-Id: Id5f0edb399151c62302b2e36bb9451ed35501d3f
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 319262c..8695777 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 319262cf70ff518c49ee0d5dfd0ec0ab9088f2e6
+Subproject commit 86957779957b9c0d6013c6f22fbc2bc288cb5a7c