Update git submodules

Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Revert "Optimize list express to list generator"

    This reverts commit e5a787046aff97a9925a35874d2b6535a9a41c0c.

    Trying to solve [1]

    Deploy failed!!!.Traceback (most recent call last):
      File "/home/daisy/deploy/tempest.py", line 94, in prepare_install
        host_interface_map, vip, isbare)
      File "/home/daisy/deploy/tempest.py", line 216, in add_hosts_interface
        add_host_role(cluster_id, host['id'], host_name, host['name'], vip)
      File "/home/daisy/deploy/tempest.py", line 225, in add_host_role
        role.name == "COMPUTER"][0]
    IndexError: list index out of range

    [1] https://build.opnfv.org/ci/job/daisy-deploy-daily-master/626/consoleFull

    Change-Id: I4017b4b38fa350a28d9e9dd5b157caab885a80d0
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>