Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 2563a5e70e720d2aef74fce3c7b4be8afd38e8fc
  - Remove shared keyspaces for SDC in cleanup
    
    Signed-off-by: Yang Xu <yang.xu@futurewei.com>
    Issue-ID: INT-1103
    Change-Id: I5194151ea6baadb455eb3e4c8d157012c6cfc371
    
1 file changed