Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to c70c8626fa9857b905db1f80a5bfe21c0b45ed32
  - User and service type management interface
    
    Change-Id: I0ddf34298d6a1acc81f4fa355f277da0aacc123a
    Issue-ID: USECASEUI-212
    Signed-off-by: guochuyicmri <guochuyi@chinamobile.com>
    
1 file changed