Migrate SLI to ODL Potassium-SR2

Updated parent versions to match Potassium-SR2 version and made
code updates necessary to migrate to OpenDaylight Potassium release.

Issue-ID: CCSDK-3990
Change-Id: I8a8a99513a257fe7e9c3736ab23cb88fb1cd85ad
Signed-off-by: Dan Timoney <dtimoney@att.com>
25 files changed