Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to bb79b68af3c008a6f490d0c1dc5bd7861b456faf
  - Merge "APIH should ensure valid requestId UUID"
  - APIH should ensure valid requestId UUID

    Added logic to check if the requestId sent in GET orchestrationRequest
    query is a valid UUID. Updated existing unit tests and added a new test
    for invalid UUID scenario.

    Change-Id: I424bef8aa75dd7e47de8145603899820dfb99725
    Issue-ID: SO-1865
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>