Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to f3b94a73f7693b95164f970eca1d2ec283f85499
  - Test coverage in TopologyService
    
    Increased coverage from 80% to 97%
    Fix Sonar major issue for branch coverage
    
    Issue-ID: APPC-1509
    Change-Id: I2f5af194b44e5871fc00c9cc12123fa6d6c1fd5d
    Signed-off-by: Joss Armstrong <joss.armstrong@ericsson.com>
    
1 file changed