Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 4836b7ed83e0128e2a53877f0faf68e1e509591a
  - Increment version to 1.6.2
    
    Change-Id: If6610d1addd323c1ad0f902a0841b979f017adc9
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1686
    
1 file changed