Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "deploy.sh refactory"
  - deploy.sh refactory

    This can be seen as a code clean up before we implementing
    running deploy.sh without recreate daisy vm and networks.

    Change-Id: I9bb67fdc7220cc70e2e876cc05750c22630d5ac8
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index 544d8d7..6073849 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit 544d8d7eb12bca66df726ba55aa7164d22a47ff6
+Subproject commit 6073849ebbb7f390bc43e620ea1be7a0aa8db251