powerpc: convert selected boards to generic board structure

Convert MPC8540ADS, MPC8541CDS, MPC8544CDS, MPC8548CDS, MPC8555CDS,
MPC8560ADS, MPC8568MDS, MPC8569MDS, MPC8610HPCD to use generic board
structure.

Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/include/configs/MPC8541CDS.h b/include/configs/MPC8541CDS.h
index d24d1ca..8942aae 100644
--- a/include/configs/MPC8541CDS.h
+++ b/include/configs/MPC8541CDS.h
@@ -13,6 +13,9 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_DISPLAY_BOARDINFO
+
 /* High Level Configuration Options */
 #define CONFIG_BOOKE		1	/* BOOKE */
 #define CONFIG_E500		1	/* BOOKE e500 family */