Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to c2a53cb447789e15e85663ae253ab2d90b972934
  - Add service creation API as an External API
    
    Issue-ID: SDC-2383
    Change-Id: I8490163310e892a7ebb6d7e7275edfdeba24045e
    Signed-off-by: Atif Husain <atif.husain@team.telstra.com>
    
1 file changed