Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to ee2d1333ff4a8a233dd00bdbda7aa9f9e38061af
  - bug: prompt box repeat rendering display has been fixed
    
    Change-Id: I80a31b7e5f0caf97bcf9954643eff566c407b912
    Issue-ID: USECASEUI-306
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
diff --git a/docs/submodules/usecase-ui.git b/docs/submodules/usecase-ui.git
index 781aad0..ee2d133 160000
--- a/docs/submodules/usecase-ui.git
+++ b/docs/submodules/usecase-ui.git
@@ -1 +1 @@
-Subproject commit 781aad0ded84716dce4cd88f661e33d0cea852e8
+Subproject commit ee2d1333ff4a8a233dd00bdbda7aa9f9e38061af