Update git submodules

* Update docs/submodules/daisy from branch 'stable/euphrates'
  - Fix some spelling mistakes in docs

    Change-Id: I07cc2531fc31c7e0ce03cf52b698c2b447c5559a
    Signed-off-by: zhongjun <zhong.jun@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index 691fa29..998e5de 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit 691fa291aca3a4d969ce1f6ab1f7335b54cde78a
+Subproject commit 998e5debd55b52e1fa47f26f82d21d9e67a153e5