Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: xci-deploy.sh: Only check for xci_overrides files in scenarios cache"
  - xci: xci-deploy.sh: Only check for xci_overrides files in scenarios cache

    xci/scenarios has been removed from releng-xci so there is not point in
    checking for xci_overrides files there.

    Change-Id: If6b9306968817b0ba8fb362b532ac8492d274676
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 02f2ee5..88a565e 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 02f2ee5f3f047f6ee5f4e570a0cb5599460de0a5
+Subproject commit 88a565e7fcc51b616451d5035dd15d9d04c4723c