Update git submodules

* Update docs/submodules/msb/apigateway.git from branch 'master'
  to 233b89619a6ca93e210b7d76c20223fa7601a173
  - Generate coverage data for sonar cloud
    
    Issue-ID: MSB-451
    Signed-off-by: Huabing Zhao <zhao.huabing@zte.com.cn>
    Change-Id: I29f082d8fd3c7040762500c81454dd6227376edc
    
1 file changed