Update git submodules

* Update docs/submodules/msb/apigateway.git from branch 'master'
  to 02d4a703019249bc0bdee90661928af991a9cadf
  - upgrade oparent to 2.1.0
    
    Issue-ID: MSB-397
    Signed-off-by: Huabing Zhao <zhao.huabing@zte.com.cn>
    Change-Id: Ib71d13b96824ec18186062b40adc533ddff663ca
    
1 file changed