Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to f5120e45dc31023ae7f9dab669622ba492a64cb5
  - Merge "merge SO-2824 from frankfurt resolve problem CreateCommunicationService SST is null"
  - merge SO-2824 from frankfurt resolve problem CreateCommunicationService SST is null
    
    Issue-ID: SO-2824
    
    Change-Id: I439f5ec11ae3b919dc98881ad2518a11c9e30bc2
    Signed-off-by: hetengjiao <hetengjiao@chinamobile.com>
    
1 file changed