Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 7e070b202cd8a109e7254854a23de33f91dc0522
  - Merge "Exception string in checkRelationshipRelatedTo"
  - Exception string in checkRelationshipRelatedTo

    Exception string in checkRelationshipRelatedTo not being returned
    properly. Added a new exception - UnassignNetworkException.
    Added a new unit test to test the exception case as per review comment.
    Updated UnassignNetworkBBTest.java file to fix the formatting errors.
    Updated unit test , removed setVariable, it wasn't needed to do as it
    was performed in the actual method call.
    Updated pom.xmp  file to fix the formatting errors.
    Updated pom.xml file to fix the formatting errors.

    Issue-ID: SO-2346
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I617dfbcb07d6080598a3ef8138aad5c7008dcee2