Update git submodules

Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 08d234170898e95096277e22b4dbbf82f576c915
  - Drop shell wrapper for docker compose operations

    Docker-compose configuration is already natively supported
    within MassPnfSim module.

    Change-Id: I26995126d8a26437821f0f8b254ff82752041b55
    Issue-ID: INT-1623
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
  - Run the 3GPP measurements file generator in bootstrap phase

    Change-Id: I310acb354003e678020935017d0778f75e7db07f
    Issue-ID: INT-1623
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
  - Generate vsftpd config file in bootstrap phase

    Change-Id: I963ff2ed9dd79f36c8fcb4e19529c4b549f92823
    Issue-ID: INT-1621
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
  - Make the config generation private method more generic

    Change-Id: I2a0b9ef8eb304cfd088cd3a7dc4c61aaf54504c4
    Issue-ID: INT-1621
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>