Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 0f90269b150bbb38773e421ac754f1c022cf9ea3
  - Merge "Fixed openstack credentials for calling bpmn external tasks"
  - Fixed openstack credentials for calling bpmn external tasks

    when so.global.security.aaf.enabled is false, openstack
    should use basic credentials to call bpmn. This is
    being addressed in this fix

    Issue-ID: SO-2747
    Signed-off-by: Ramesh Parthasarathy(rp6768)<ramesh.parthasarathy@att.com>
    Change-Id: Ie16f6a8d94a3f099b461eefbfc478723c2a9a9c0