i386/113540: decrease i8254 calibration precision to make it work with Xbox, remove warnings

[Rink Springer]

Synopsis: decrease i8254 calibration precision to make it work with Xbox, remove warnings

Responsible-Changed-From-To: freebsd-i386->rink
Responsible-Changed-By: rink
Responsible-Changed-When: Sun Jun 10 20:21:51 UTC 2007
Responsible-Changed-Why: 
I'l deal with this.


http://www.freebsd.org/cgi/query-pr.cgi?pr=113540