Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: playbooks: Drop .gitignore file"
  - xci: playbooks: Drop .gitignore file

    There is probably no good reason anymore to be so strict with file
    inclusions in the roles directory so drop the .gitignore file.

    Change-Id: I84569c8c82c4aeb5da6c6e39e02ff514566e5213
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index e6ccdc7..1294c5e 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit e6ccdc7afc44e2c6191ed9bdbe5ceb48d14a4870
+Subproject commit 1294c5e67ec9d344caee473c6f87b1a0b39fb451