Add processor.
 [jmk] --rw-rw-r-- M 12721 glenda sys 18625 Dec 31 12:04 sys/src/9/pc/devarch.c
	/n/sourcesdump/2005/1231/plan9/sys/src/9/pc/devarch.c:612,617 - 
	/n/sourcesdump/2006/0101/plan9/sys/src/9/pc/devarch.c:612,618
	  	{5,	4,	23,	"Winchip",},	/* guesswork */
	  	{6,	7,	23,	"Via C3 Samuel 2 or Ezra",},
	  	{6,	8,	23,	"Via C3 Ezra-T",},
	+ 	{6,	9,	23,	"Via C3 Eden-N",},
	  	{ -1,	-1,	23,	"unknown", },	/* total default */
	  };