Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to fa092c52d71f9bcb0dbc51aadcfe8551beb5b8be
  - documents have different spelling mistakes and grammatical issues
    
    fix for documents mistakes
    
    Issue-ID: USECASEUI-291
    
    Signed-off-by: anjali.walsatwar <anjali.walsatwar@huawei.com>
    Change-Id: I546c3196c211e5607fd6b20ac112a76783cb0904
    
1 file changed