Update git submodules

Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 9ece7533e7463c7d162e27496a40d3447304475f
  - Merge changes from topic "OOM-1910"

    * changes:
      Clean application role mocked artifacts directories
      Add custom patch role scenario to 'application' role

  - Clean application role mocked artifacts directories

    Directories created by Molecule tests were left in
    files tree and not cleaned up. This patch adds a task
    to shred them after test invocation.

    Change-Id: If745cfc45de2f73db5be1696a16a185ff2a625bf
    Issue-ID: OOM-1910
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
  - Add custom patch role scenario to 'application' role

    This adds test case for when application_pre_install_role
    and application_post_install_role are set to custom role;
    by default they are empty.

    Code condition coverage is increased.

    Change-Id: I14e59e15cf3ead0459374b5777f8ee03fe75d7bd
    Issue-ID: OOM-1910
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>