Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 11513d8eb65642758ee8dd794342b2f65daae482
  - feat:optimize the mock api json of customer page
    
    Change-Id: Ia1892e198693ffb64aae54553e46d54c9afe1ead
    Issue-ID: USECASEUI-307
    Signed-off-by: cyuamber <xuranyjy@chinamobile.com>
    
1 file changed