add fi_no_enable since passive endpoints do not need enable
(at least its not called in the example programs)

Signed-off-by: Reese Faucette <rfaucett@cisco.com>
usnic: various updates
- start work on SW emulation of reliable messaging
- make async address resolution native
- move progression thread from domain to fabric
- add open_ops for fabric and AV

Signed-off-by: Reese Faucette <rfaucett@cisco.com>