Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to dac845c622625f78f5c28be9b93ecf3ab377f488
  - Increment version to 1.7.1-SNAPSHOT
    
    Change-Id: I1d1528e9029510ac14f7b527b245854df48c3d9a
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1816
    
1 file changed