Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 9a3add2d727723877bbc6119d9b1f4a5d49fccc6
  - SDC alignment SOL004 2.6.1
    
    Updating TOSCA.meta metadata Created-by key to Created-By
    Issue-ID: SDC-2402
    
    Change-Id: Ice17dac288d745292bdd8d296bd1ae3eedbff223
    Signed-off-by: bilal.iqbal <bilal.iqbal@est.tech>
    
1 file changed