Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 228c62e51e65cf97e277fc257ea27b07dcf55212
  - Add reverse-SSHFS-based file synchronization documentation
    
    Issue-ID: ONAPARC-551
    Change-Id: Ic22d32998ad0fc29867116827679e4c4181ba596
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>
    
1 file changed