Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 899c2f1520b1ec529bf6b4faef6623ea566634dd
  - Changes to config bundle for vnf level enhancement
    
    Issue-ID: APPC-1380
    Change-Id: Icfdc202a4763b7e708007573505e5b3be9d1454e
    Signed-off-by: George, Lina (lg941u) <lg941u@att.com>
    
1 file changed