arm: kirkwood: Align configuration files

Cosmetic: CONFIG_OF_LIBFDT was in a different position in the config
file for the Dreamplug, compared to the Sheevaplug and Guruplug.
Signed-off-by: NQuentin Armitage <quentin@armitage.org.uk>

include/configs/dreamplug.h

@@ -41,6 +41,11 @@
 /* Add target to build it automatically upon "make" */
 #define CONFIG_BUILD_TARGET     "u-boot.kwb"
 
+/*
+ * Enable device tree support
+ */
+#define CONFIG_OF_LIBFDT
+
 /*
  * Commands configuration
  */
@@ -131,6 +136,4 @@
  */
 #define CONFIG_DISPLAY_CPUINFO
 
-#define CONFIG_OF_LIBFDT
-
 #endif /* _CONFIG_DREAMPLUG_H */