Disable Eviction of flow in Vrouter
Disable Eviction of flow in Vrouter

Vrouter will track tcp flags, but will not evict the flow
entry once the session is closed and let vrouter agent
look at the flag to delete the flow eventually.

This is required till vrouter agent handles evict event
in a more stable way

Partial-Bug: 1550759
Change-Id: Ic7074442b22fc2c11362274e4e390654f3f2400a
(cherry picked from commit d44296e70bb4f1b7fab42d454cef125d3d4479e3)

codilime/contrail-vrouter,codilime/contrail-vrouter,codilime/contrail-vrouter,codilime/contrail-vrouter