Update git submodules

Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 156cf4c275a8df43e30b698720011ac9d5e29c4d
  - Move site specific properties to config file

    Vcpe settings that were hardcoded in the VcpeCommon
    class definition are moved to a configuration file.

    Change-Id: I6733c6da5fc1977f67c4bd393bfa6fec0798971b
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
    Issue-ID: INT-1399

  - Support reading configuration from vcpeconfig.yaml

    Settings from config file will be assigned directly
    to VcpeCommon class' object attributes.

    Change-Id: I3cd31077c04de6bacf6dc2365837405a1aa5f6cc
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
    Issue-ID: INT-1399