Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to c6dfa07021b6d34063aaa554e53ad40bb68a8793
  - fix: Fix the bug the create model msg info of services-list
    
    Change-Id: I4f6e57b5a731524258c511316773b0a63c60f6d9
    Issue-ID: USECASEUI-370
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed