Add regex(3) matching feature for card line strings.

Add regex(3) matching feature for card line strings.
 - This feature will be enabled only if the string is
   enclosed by '/' something like;
	card "SunDisk" "/.*/"
 - Also added matching additional information strings
   followed by version string.  This is for the card which is
   difficult to idendentify by only the manufacturer and
   card version strings matching.
	card "MACNICA" "MIRACLE SCSI" "mPS100" "D.0"

Reviewed by:	imp
Obtained from:	PAO