Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'dublin'
  to 55e01c00592ee22d702b1c7c0692e34d85c5e028
  - Merge "Add SO Turn off OpenStack heat stack audit" into dublin
  - Add SO Turn off OpenStack heat stack audit

    UPDATE these files
    so/bpmn/mso-infrastructure-bpmn/src/main/resources/application.yaml
    so/mso-api-handlers/mso-api-handler-infra/src/main/resources/application.yaml
    should have
    mso: infra:
        auditInventory: false
    Issue-ID: SO-1974
    Signed-off-by: Bonkur, Venkat (vb8416) <vb8416@att.com>
    Change-Id: I57bb396604e9eb2787122199cdf8a2d1ce54048a