igep00x0: disable environment

ISEE's U-Boot and Linux are using 1bit ECC scheme, while we
switched to 8bit ECC to fullfill flash specification requirements.
However when trying to run U-Boot on board with 1bit ECC'd data
on flash, UBI code takes several minutes to pass scan as reading
of every block ends with ecc error (which is also printed on
console).
So, until proper solution is developed, disable environment
alltogether.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

include/configs/omap3_igep00x0.h

@@ -140,7 +140,7 @@
 #define CONFIG_SPL_UBI_INFO_ADDR	0x88080000
 
 /* environment organization */
-#define CONFIG_ENV_IS_IN_UBI		1
+#define CONFIG_ENV_IS_NOWHERE		1
 #define CONFIG_ENV_UBI_PART		"UBI"
 #define CONFIG_ENV_UBI_VOLUME		"config"
 #define CONFIG_ENV_UBI_VOLUME_REDUND	"config_r"