Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 8ec5130ce28bc3dd731c2eb10d54e58b8e155190
  - Reduce ONAP VM footprint
    
    Reduce size of NFS and orch VMs to m1.medium
    Reduce default number of worker VMs to 9
    
    Issue-ID: INT-1117
    Signed-off-by: Gary Wu <gary.wu@futurewei.com>
    Change-Id: I53dc47ccd3d8bad03bcbc109a68b23b75314dbaa
    
1 file changed