[Hardy] SRU: enable USB serial support on sparc

[Andy Whitcroft]

On Thu, Dec 04, 2008 at 06:13:35PM +0100, Stefan Bader wrote:

> I did a lookup on the first one and this was an option that is actually 
> not useful for sparc. So strongly suspect Fabio used editconfigs and 
> those other options once went in manually.

If its edit configs fixing up the configs then thats fine.  Overall it
looks pretty benign.

ACK

-apw