Add a NEXTDOSPART definition here as well, for the benefit of biosdisk.c in

the bootcode.  I don't think there acturally are any extended partitions on
pc98, and this define may merely help cover up the fact that the biosdisk.c
was insufficiently scrubbed when copy&pasted from i386.

sys/sys/diskpc98.h

@@ -42,6 +42,7 @@
 #define	DOSBBSECTOR	0	/* DOS boot block relative sector number */
 #define	DOSPARTOFF	0
 #define	NDOSPART	16
+#define	NEXTDOSPART	32	/* XXX: For biosdisk.c in sys/boot.  Probably wrong */
 #define	DOSPTYP_386BSD	0x94	/* 386BSD partition type */
 
 struct pc98_partition {