Update git submodules

* Update docs/submodules/msb/apigateway.git from branch 'master'
  to ff6aa4b5dd381c4151546d43197b93eb636f9115
  - Update jetty-http
    
    Issue-ID: MSB-328
    Change-Id: Ie8cb9aa0d919b4adcb2ad5764ec6e221e51f2cdb
    Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
    
1 file changed