am335x_evm.h: Make 'am335x_boneblack' use redundant environment

Signed-off-by: Tom Rini <trini@ti.com>

include/configs/am335x_evm.h

@@ -359,6 +359,9 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV		1
 #define CONFIG_SYS_MMC_ENV_PART		2
+#define CONFIG_ENV_OFFSET		0x0
+#define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
+#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
 #endif
 
 /* SPI flash. */