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/dvlhost.h b/include/configs/dvlhost.h
index 86fecd1..4eda91e 100644
--- a/include/configs/dvlhost.h
+++ b/include/configs/dvlhost.h
@@ -30,6 +30,8 @@
 #define CONFIG_IXP425			1
 #define CONFIG_DVLHOST			1
 
+#define	CONFIG_MACH_TYPE		1343
+
 #define CONFIG_DISPLAY_CPUINFO		1
 #define CONFIG_DISPLAY_BOARDINFO	1