Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Merge "Initial merge of BM Installation guide"
  - Initial merge of BM Installation guide

    Change-Id: I9964f0d75ae879c6b86d245f2007841236a0b931
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index 4b60f11..569a393 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit 4b60f118bc2b5bc49e4358eb9df4e54917caab6a
+Subproject commit 569a39323ee6f413ce8198f760c358934ffe62a1