Adjusting ovsdb project to work with the new default openflowplugin and openflowjava...

Adjusting ovsdb project to work with the new default openflowplugin and openflowjava bundles.

With the latest changes in the Controller and Integration projects, MD-SAL based Openflowplugin is made
the default openflow plugin. In order to work in tandem with Controller/Integration project, this changeset
contains the changes that will make MD-SAL Openflow Plugin as the default Openflow Provider in the OVSDB local
distribution target.

Change-Id: I11fc6bae0fb8c471fc8518baacf3e96eeefce1d1
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>