Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 5b346094ab12d2561471ec15122bdce2f840237c
  - Package management interface development
    
    Change-Id: I32c02dd5efdea663071238ff7d7dbc47c02f78c5
    Issue-ID: USECASEUI-211
    Signed-off-by: guochuyicmri <guochuyi@chinamobile.com>
    
1 file changed