Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - password auth module seems can not accept region_name as argument

    Please see the error info at the end of [1].

    [1] https://build.opnfv.org/ci/job/daisy-deploy-daily-master/815/console

    Change-Id: I309fd858ea10a8821c95d66a27b7840a7f70151c
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index fd74e1b..318da26 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit fd74e1b6163f475050be225356f60b84c874177e
+Subproject commit 318da268625f03a5de446fee9acedcda93188022