[mc1322x] uart1-loopback example. Modification for mc1322x-SRB

[Mariano Alvira]

On Mon, Mar 29, 2010 at 06:25:55PM -0400, Jon Smirl wrote:
> This is an update to the blink example to make it use Contiki device drivers.

I've modified Jon's patches to include my fixes and to use
board.h. I've updated mc1322x-2.4 and WIP-2.4 --- I didn't worry about
master since that's getting overhauled soon (and will pick up these
changes).

This interface still isn't quite right though since it's writing out
to gpio_data --- if you have output pins that aren't leds in other
states then they will be clobbered. It shouldn't be too much work to
change them to use gpio_data_set and gpio_data_reset instead.

-Mar.