Enable router extension in Brocade Plugin

Fixes: bug 1166516

Change-Id: Ia3be25b9cdc21b217200997d1a447dccf8549d64
NEC plugin: Ensure to delete portinfo when port_removed RPC.

Fixes bug #1187249

Change-Id: Iaccfd1d4918df5dc4ba1c0478689fd4c833da7b3
Merge "Enable router extension in Brocade Plugin" into stable/grizzly
Merge "NEC plugin: Ensure to delete portinfo when port_removed RPC." into stable/grizzly