Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to e83217f0f442f6ad2c376a384b7dcd2232b254bd
  - feat: change the main menu to face the nsmf requirement
    
    Change-Id: I1c835e2798d91a929fb8aac54ff30229a0b85ee5
    Issue-ID: USECASEUI-352
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed