Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Provide default password for daisy server

    There is no PDF for virtual pods now. And daisy_passwd was deleted
    from the deploy.yml of zte-virtual1 in pharos.

    Change-Id: I0a6fba8fa634806a21779a382f5ff07f9450e270
    Signed-off-by: Alex Yang <yangyang1@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index cfe7380..abfc718 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit cfe73802473d8929d2533ed59fa995174e23933a
+Subproject commit abfc71804f3d7e84cea6fee25697783f7160f9ec