Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 02c068ce771ee4522936f2d15f41c2b631e965a8
  - Merge "Add so-simulator project"
  - Add so-simulator project
    
    contribute simulator to onap project
    
    Issue-ID: SO-2463
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I0a3a71fdeb47cbbd686830045a8bc40769102a29
    
1 file changed