mpc512x: use common code for CSx configuration

Remove CSx configurations from board code and only define
required CSx macros in the board config file to configure
chip select windows and parameters.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Cc: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/mpc5121ads.h b/include/configs/mpc5121ads.h
index 3f55d35..a64df61 100644
--- a/include/configs/mpc5121ads.h
+++ b/include/configs/mpc5121ads.h
@@ -258,6 +258,8 @@
  */
 #define CONFIG_SYS_CPLD_BASE		0x82000000
 #define CONFIG_SYS_CPLD_SIZE		0x00010000	/* 64 KB */
+#define CONFIG_SYS_CS2_START		CONFIG_SYS_CPLD_BASE
+#define CONFIG_SYS_CS2_SIZE		CONFIG_SYS_CPLD_SIZE
 
 #define CONFIG_SYS_SRAM_BASE		0x30000000
 #define CONFIG_SYS_SRAM_SIZE		0x00020000	/* 128 KB */