Blackfin: bf548-ezkit: move env sector

U-Boot itself takes up more than 0x40000 bytes, so we can't use that
sector for the environment.  Move it down a page.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

include/configs/bf548-ezkit.h

@@ -110,7 +110,7 @@
 #define CONFIG_ENV_IS_EMBEDDED_IN_LDR
 #elif (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_NAND)
 #define CONFIG_ENV_IS_IN_NAND
-#define CONFIG_ENV_OFFSET	0x40000
+#define CONFIG_ENV_OFFSET	0x60000
 #define CONFIG_ENV_SIZE		0x20000
 #else
 #define CONFIG_ENV_IS_IN_FLASH	1