Policy manager is not aware of NAN Datapath Interface(NDI)
which is used to establish datapath with NAN peers. Define
and enumerate policy manager definitions and tables to
support NDI alongside NAN Discovery and Station interfaces.
Important thing to note is that NDI cannot be active without
presence of a NAN Discovery interface.
Define NAN Datapath related definitions in Policy Manager.
Change-Id: I6ecdf5a89a8161d9c5d671e4e718dd615f46019e
CRs-Fixed: 2407225
98885bc1b8