configs: j721e_evm: Add configs for environment in eMMC

Add config to save and read back environment from eMMC.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/include/configs/j721e_evm.h b/include/configs/j721e_evm.h
index bbbbe42..48d81df 100644
--- a/include/configs/j721e_evm.h
+++ b/include/configs/j721e_evm.h
@@ -127,4 +127,10 @@
 /* Now for the remaining common defines */
 #include <configs/ti_armv7_common.h>
 
+/* MMC ENV related defines */
+#ifdef CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV		0
+#define CONFIG_SYS_MMC_ENV_PART	1
+#endif
+
 #endif /* __CONFIG_J721E_EVM_H */