Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: xci-deploy: Add simple error handler"
  - xci: xci-deploy: Add simple error handler

    Add a simple function to collect useful information when submitting
    bug reports.

    Change-Id: If24b76d2742edffa2269d39dcc998675d1388214
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index dc9821c..4afd617 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit dc9821c808cebea352f0429145b8c77cd4dcb66c
+Subproject commit 4afd6172bd42b5dd279d54e863d77e412654435b