Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "enable ceph backend for deploy cinder"
  - enable ceph backend for deploy cinder

    Change-Id: I71255872e6bcf485f8ab72c105db931d96233d03
    Signed-off-by: zhouya <zhou.ya@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index 032fe27..eb479eb 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit 032fe270a600cb8917cd9c81730a18cd0fee6e61
+Subproject commit eb479eb3ec9ec756ac1f1eb194f9831394f6e27c