Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 76c431ff25d09b69ea912f53ca96cbcdcb52a3fb
  - Fix for timeout error when logging >1MB data
    
    Potentially large logs moved to TRACE level, INFO level
    logs limited in size and related tests updated
    
    Issue-ID: APPC-1489
    Change-Id: I9ea85e64380479d835da03ed2af3e4ab96ece67e
    Signed-off-by: Joss Armstrong <joss.armstrong@ericsson.com>
    
1 file changed