Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 356dba9fb407b1df3fe89a4c8f082a09aa564d36
  - Test coverage in RequestValidatorImpl
    
    Increased coverage from 78% to 89%
    
    Issue-ID: APPC-1485
    Change-Id: I2b4e87d0ae9b344ef59005bc19cd2600e4e041e8
    Signed-off-by: Joss Armstrong <joss.armstrong@ericsson.com>
    
1 file changed