Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "Add some unit test files test_netwrok.py"
  - Add some unit test files test_netwrok.py

    1.add the below unit test files:
    test_netwrok.py/test_schemas.py/test_query.py/test_utils.py
    2.add the corresponding test conf file deploy_virtual_error.yml.

    Change-Id: I01292d4c94b9d6159597961a0cab515f57727ec3
    Signed-off-by: zhongjun <zhong.jun@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index a176858..27c4b30 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit a176858f54c14975c0b3d771df11c08cbc8a792d
+Subproject commit 27c4b308bcfc4b7dee773acb0030c980cd856105