[mc1322x] Interrupt driven receive and fragmented packets

[Jon Smirl]

I haven't had any success in getting interrupt driven receive working
right.  The problem is definitely inability to receive multiple
packets (fragments) in a row at minimum packet spacing. My new
strategy is to reduce surface area and try modifying rftest-rx.c to
work with interrupts. We also have to get the AUTO mode of receiving
chaining working. I suspect this is all that is stopping the webserver
example from running. TCP appears to be working until a packet gets
fragmented.

I'm carefully rereading the MACA section of the manual. If anyone
already knows how to do receives in AUTO mode it would save a lot
time.

-- 
Jon Smirl
jonsmirl at gmail.com