Update git submodules

Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - functest: Move run-functest.sh execution out of ansible

    Ansible throws out the log at the end of task execution which
    makes it hard to read. This change renames the role to prepare-functest
    and then takes the script execution out which will be executed by
    releng/jjb/xci/xci-run-functest.sh.

    Change-Id: Icf399ce4f04357814ed7109cd11113a9decddc50
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>