Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 9aa8ad1066895b11c66f8036f5d1aec9a836aa96
  - Merge "style: ptimize the upload part style of the onboard page"
  - style: ptimize the upload part style of the onboard page
    
    Change-Id: I7185d478cfef509c7802edd805116191d63ff24d
    Issue-ID: USECASEUI-307
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed