Add Wistron RPAA-82 board support

[Andrew Thompson]

On Mon, Oct 26, 2009 at 11:37:52AM +0800, Eric wrote:
> Hi
> I added my ar7161 board support last weekend.
> It's flash is come from Spansion.

This is great. Oleksandr has also just added write support which will
conflict/duplicate some of your changes so have a look and merge any
outstanding changes you have made (s25fl128 support).

http://svn.freebsd.org/viewvc/base?view=revision&revision=198465

cheers,
Andrew