include/configs: remove references to SMNAND_ENV_OFFSET

In mancy cases both CONFIG_ENV_OFFSET and CONFIG_ENV_ADDR point
to an otherwise-unused SMNAND_ENV_OFFSET.
This patch will set both CONFIG_ENV_OFFSET and CONFIG_ENV_ADDR to
whatever value was defined by SMNAND_ENV_OFFSET.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/include/configs/tam3517-common.h b/include/configs/tam3517-common.h
index 0539909..2363912 100644
--- a/include/configs/tam3517-common.h
+++ b/include/configs/tam3517-common.h
@@ -126,12 +126,11 @@
 
 /* **** PISMO SUPPORT *** */
 #define CONFIG_NAND_OMAP_GPMC
-#define SMNAND_ENV_OFFSET		0x180000 /* environment starts here */
 
 /* Redundant Environment */
 #define CONFIG_SYS_ENV_SECT_SIZE	(128 << 10)	/* 128 KiB */
-#define CONFIG_ENV_OFFSET		SMNAND_ENV_OFFSET
-#define CONFIG_ENV_ADDR			SMNAND_ENV_OFFSET
+#define CONFIG_ENV_OFFSET		0x180000
+#define CONFIG_ENV_ADDR			0x180000
 #define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + \
 						2 * CONFIG_SYS_ENV_SECT_SIZE)
 #define CONFIG_ENV_SIZE_REDUND		CONFIG_ENV_SIZE