Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to dcb2adf22bf7d479ac6468f3482fc1565e42b7a8
  - Merge "style: customer page style optimization"
  - style: customer page style optimization
    
    Change-Id: I43b6df7d3e7e03e5f608344aea76231aeb39ad97
    Issue-ID: USECASEUI-307
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed