Update git submodules

Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "code variable name refactor"
  - code variable name refactor

    refactor the deploy.sh variable name
    1.unify the glabs var name to upper case.
    2.refactor the variable of target_node_net/daisy_server_net
    to add prefix VMDEPLOY for code readablity.
    3.refactor the usage() to function usage for uniform the
    code style.

    Change-Id: Ibd7ea91ac8b19cd7147e3a7d97b3359880cec59c
    Signed-off-by: zhongjun <zhong.jun@zte.com.cn>