configs: am65x: Add configs to support environment in eMMC

Add configs such that U-boot environment is in eMMC by default.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
diff --git a/include/configs/am65x_evm.h b/include/configs/am65x_evm.h
index b043bf8..e9e9d4a 100644
--- a/include/configs/am65x_evm.h
+++ b/include/configs/am65x_evm.h
@@ -68,6 +68,16 @@
 	EXTRA_ENV_AM65X_BOARD_SETTINGS					\
 	EXTRA_ENV_AM65X_BOARD_SETTINGS_MMC
 
+/* MMC ENV related defines */
+#ifdef CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV		0
+#define CONFIG_SYS_MMC_ENV_PART	1
+#define CONFIG_ENV_SIZE		(128 << 10)
+#define CONFIG_ENV_OFFSET		0x680000
+#define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
+#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
+#endif
+
 /* Now for the remaining common defines */
 #include <configs/ti_armv7_common.h>