Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 4dc98f06ad922fdb4b647114f37e78024df118a3
  - Added test case for Appc Provider client
    
    Increased the coverage from 0% to 100%
    
    Issue-ID: APPC-1455
    Change-Id: I0e719bd084a985b63110f15681b6a87ec4affb4d
    Signed-off-by: Lathishbabu Ganesan <lathishbabu.ganesan@ericsson.com>
    
1 file changed