powerpc/ppc4xx: Adjust environment size on neo

Environment size on neo has to be 0x20000 for compatibilty reasons.

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>

include/configs/neo.h

@@ -150,7 +150,7 @@
 #ifdef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_ENV_SECT_SIZE	0x20000	/* size of one complete sector		*/
 #define CONFIG_ENV_ADDR		((-CONFIG_SYS_MONITOR_LEN)-CONFIG_ENV_SECT_SIZE)
-#define	CONFIG_ENV_SIZE		0x2000	/* Total Size of Environment Sector	*/
+#define	CONFIG_ENV_SIZE		0x20000	/* Total Size of Environment Sector */
 
 /* Address and size of Redundant Environment Sector	*/
 #define CONFIG_ENV_ADDR_REDUND	(CONFIG_ENV_ADDR-CONFIG_ENV_SECT_SIZE)