Update git submodules

Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "Nomination of Committer promotion for Jun Zhong"
  - Nomination of Committer promotion for Jun Zhong

    I'd like to nominate Jun Zhong for Daisy4NFV core reviewer.

    Jun started to work on Daisy4NFV since the beginning of the project and he has made significant contribution to project during E release cycle including code pythonizing, add unit test framework, test supplementary and etc.. [1][2]

    I have had a talked with him offline and he expressed willing to contribute more to Daisy4NFV project on several new fields such as ARM platform support.... I believe he will make a great addition to the core review team.

    All Daisy4NFV committers, please vote +1 or +2 if you support this nomination [3].

    [1] http://stackalytics.com/?project_type=opnfv-group&metric=commits&release=all&module=daisy
    [2] https://gerrit.opnfv.org/gerrit/#/q/owner:zhong.jun%2540zte.com.cn+status:merged+project:daisy
    [3] https://wiki.opnfv.org/display/DEV/Committer+Promotions

    Change-Id: I8423b4dfe6a034dbb7c6aeccf55daa7f06172136
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>