dreamplug: set CONFIG_BUILD_TARGET to build u-boot.kwb

Saves having to remember to ask make for it explicitly.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-By: Prafulla Wadaskar <prafulla@marvell.com>

include/configs/dreamplug.h

@@ -39,6 +39,9 @@
 #define CONFIG_SKIP_LOWLEVEL_INIT	/* disable board lowlevel_init */
 #define CONFIG_SYS_GENERIC_BOARD
 
+/* Add target to build it automatically upon "make" */
+#define CONFIG_BUILD_TARGET     "u-boot.kwb"
+
 /*
  * Commands configuration
  */