Update git submodules

* Update docs/submodules/releng from branch 'master'
  - xci: Switch to freestyle for xci-verify jobs

    Change-Id: I7a2fa9e3e2bb78ccc2dc6f26be7848019e6de6b8
    Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index b6da25c..5564672 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit b6da25ca092390f5c8819cb21b168d85c848f765
+Subproject commit 5564672a32d0a645fff09dee69021d1f243eec07