Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 8c0057e9f185d0ca632c2072a182cbee46f92c50
  - Test coverage in AbstractRequestHandlerImpl
    
    Increased coverage from 72% to 95%
    
    Issue-ID: APPC-1484
    Change-Id: I1bbb8aaf1b7ca33b20d8768cacd14c7bdabe5caa
    Signed-off-by: Joss Armstrong <joss.armstrong@ericsson.com>
    
1 file changed