[RFC] support -b <baudrate> when starting gdb

[John Baldwin]

On Wednesday, January 16, 2013 1:30:37 am Adrian Chadd wrote:
> Also, I found 'set remotebaud' and 'set debug remote 1' to do this.
> 
> I'd like to add the code just to support the same -b flag as gdb (so
> -r can also be used with a non-standard serial port.)

I think adding -b is fine.

-- 
John Baldwin