Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 74a340555461715c177df449ca357449ec9f11ed
  - Created constant to replace dup String literal
    
    Sonar fix
    
    Issue-ID: APPC-1554
    Change-Id: I8ff882baf26e765b9b8bcf23bcc37b11a3567ded
    Signed-off-by: Jegadeesh Babu <jegabab1@in.ibm.com>
    
1 file changed