Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Fix yum update repos

    The *yum update* fails during the installation of ansible in centos
    because it tries to update openssh-server among other packages.
    This commit change fixes the command to only update the repository
    information. The --assumeno argument is not required.

    Change-Id: I26870462888742b3200097322d5316ac00febfc5

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index d14c305..e5d66b5 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit d14c305f9adfbb692f0f9113ce175e4db51697cc
+Subproject commit e5d66b5058188422bcb63f7860593278fcb39ba3