IXP: Fix missing MACH_TYPE_{ACTUX?,PNB3,DVLHOST}

These symbols are no longer defined in Linux-ARM's mach-types files. Replace
these with CONFIG_MACH_TYPE instead.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Bryan Hundven <bryanhundven@gmail.com>
Cc: Michael Schwingen <rincewind@discworld.dascon.de>
diff --git a/include/configs/pdnb3.h b/include/configs/pdnb3.h
index 56bb464..43ec38f 100644
--- a/include/configs/pdnb3.h
+++ b/include/configs/pdnb3.h
@@ -33,6 +33,8 @@
 #define CONFIG_IXP425		1       /* This is an IXP425 CPU	*/
 #define CONFIG_PDNB3		1       /* on an PDNB3 board		*/
 
+#define	CONFIG_MACH_TYPE	1002
+
 #define CONFIG_DISPLAY_CPUINFO	1	/* display cpu info (and speed)	*/
 #define CONFIG_DISPLAY_BOARDINFO 1	/* display board info		*/