tt01: fix environment size

size of environment must match erasable block size in the flash.

Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>

include/configs/tt01.h

@@ -131,7 +131,7 @@
 
 #define CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_ENV_SECT_SIZE	(128 * 1024)
-#define CONFIG_ENV_SIZE		(8 * 1024) /* smaller for faster access */
+#define CONFIG_ENV_SIZE		(128 * 1024)
 
 /* Address and size of Redundant Environment Sector	*/
 #define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)