In porting the sn_console driver to the serial core, we lost sysrq support.  
This patch fixes it and removes a few unncessary #ifdefs.  Can you please 
send it on to Linus asap?  sysrq is a *really* nice thing to have.

Pat, please shoot Andrew a mail if you have a problem with this, I'm sending 
it out now because I'm going to be gone for a few days and didn't want to 
wait.

Signed-off-by: Jesse Barnes <jbarnes@sgi.com>

Thanks,
Jesse