Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to ca20de4c8b5fe36d231d3256208d82dfbf470271
  - Merge "NSSMF Rest Utils"
  - NSSMF Rest Utils
    
    Adding utils to NSSMF Adapter
    
    Change-Id: Id47d06844f3bf5f97c5f91c76f7e79ea7204a520
    Issue-ID: SO-2544
    Signed-off-by: jananib <janani.b@huawei.com>
    
1 file changed