NS_Emulation: Use the "endpoint" mode of NS_Provider_IPL4

Thew newly-introduced "endpoint" mode of NS_Provider_IPL4 allows us
to have multiple NS-VC within one endpoint.  NS_CT takes care of
creating the NS_Provider_IPL4 components on-the-fly, and then
associating the per-NSVC components with it.

For the user nothing changes, other than that he can now configure
multiple NSVCs with identical local IP + port, which was not possible
before.

Change-Id: Id7360f17e528706e8145d33a14550789d50cded9
2 files changed