[ofa-general] Stringify ibv_event_type

[Roland Dreier]

 > Could a function to stringify the ibv_event_type enum can be added to
 > libibverbs?  It could be similar to the event_name_str() function in
 > libibverbs/examples/asyncwatch.c:

Seems reasonable.  I guess if you have that, then you probably want
strings for enum ibv_wc_status too.  Any other enums you would want to
stringify?

Also, I think this could be added to the libibverbs 1.1 stable line,
since it's a completely new API, and easy to test for with autoconf, right?

 - R.