Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: osa: Update ansible role for configuring the proxy server

    The old role has disappeared so we have to use another one.

    Change-Id: I8533912a19680e93a9cf061109019a0801485936
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 92afad5..933c7a0 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 92afad5981d84cec20359551209c50a5f6755cb9
+Subproject commit 933c7a0f36c970d24954b9ba1552a29a75b43976