Update git submodules

Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 863c0ad7fd25c06efce969fedac85887b1fb7e73
  - Remove cleanup from play-resources

    When play-resources does not use
    bindmounting, there is no need to manually clean up resource files.
    That makes it possible to remove cleanup.yml all together.
    This is in preparation to remove the othervise unneeded
    cleanup-directories role.

    Change-Id: Id6c05700e8cd2e9c8f91a3cfdf46022b170e1e1e
    Issue-ID: OOM-1902
    Signed-off-by: Michal Zegan <m.zegan@samsung.com>