Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "Add upstream patches"
  - Add upstream patches

    When we building kolla images in OPNFV jenkins job, we need to
    clone code directly from openstack/kolla project and patch it
    with necessary patches needed by OPNFV.

    This is the first patch focus on ODL and DPDK integration. To
    use it, please clone openstack/kolla's stable/pike branch first
    then apply patch by using git apply command.

    This PS also solved git clone risk found by Anteater by
    deleting url variable in git clone command.

    Change-Id: I9d02f0d4919b53fb33233399ed4efd57d27b21a1
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index 431ed2b..cfe7380 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit 431ed2baa96538fd48ebc1e7df8454b60b903de1
+Subproject commit cfe73802473d8929d2533ed59fa995174e23933a