Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 780e66aeb4ee12e6455e1573ac174f1e817f06e5
  - Update APPC image tag
    
    Issue-ID: INT-1414
    Signed-off-by: Marco Platania <platania@research.att.com>
    Change-Id: Id532a57a1be0207cca90a9c2b3c111f191f0062e
    
1 file changed