Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to d936ec81029cd05c999a27898f29f4c37e7075aa
  - Merge "feat:optimize data type definition and data type reference"
  - feat:optimize data type definition and data type reference
    
    Change-Id: I640e9500556cb20783a4e1f604bc334a740ddeac
    Issue-ID: USECASEUI-307
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
diff --git a/docs/submodules/usecase-ui.git b/docs/submodules/usecase-ui.git
index 9fbbe28..d936ec8 160000
--- a/docs/submodules/usecase-ui.git
+++ b/docs/submodules/usecase-ui.git
@@ -1 +1 @@
-Subproject commit 9fbbe288ed8f9fd60da7e796a014e88c02b87fb8
+Subproject commit d936ec81029cd05c999a27898f29f4c37e7075aa