Enable passing of ATAGs required by latest Linux kernel.

include/configs/pxa255_idp.h

@@ -208,6 +208,10 @@
 /*			"protect off"	*/
 
 
+#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS	1
+/* #define CONFIG_INITRD_TAG		1 */
+
 #if defined(CONFIG_CMD_KGDB)
 #define CONFIG_KGDB_BAUDRATE	115200		/* speed to run kgdb serial port */
 #define CONFIG_KGDB_SER_INDEX	2		/* which serial port to use */