Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "Some optimizations about unit test"
  - Some optimizations about unit test

    Remove some "if/else".
    Rename a variables and a file.
    Split a testcase in two cases.

    Change-Id: Ic107845ac8eff41ba20e1501c93925586d6cbde9
    Signed-off-by: Alex Yang <yangyang1@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index 64bb1f6..2045ccf 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit 64bb1f695fd692dd9e34c4083468c6c053838503
+Subproject commit 2045ccff6a31ce649cfabc0ba896e9d0d708e3e0