As Neutron switched to use pyroute2 for managing namespaces in
4f627b4e8dfe699944a196fe90e0642cced6278f
neutron-lbaas needs to setup privsep in agent to make
possible manipulating with network namespaces.
Change-Id: I084f8d54cc619a1c99658396d5cab036a2663413
Closes-Bug: #1723856