configs: j721e_evm: Store env in MMC FAT partition

Enable defconfigs relevant for storing env on FAT partion of MMC.

Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
diff --git a/configs/j721e_evm_r5_defconfig b/configs/j721e_evm_r5_defconfig
index e6a5f99..0a91212 100644
--- a/configs/j721e_evm_r5_defconfig
+++ b/configs/j721e_evm_r5_defconfig
@@ -67,6 +67,7 @@
 CONFIG_SPL_OF_LIST="k3-j721e-r5-common-proc-board k3-j721e-r5-sk"
 CONFIG_SPL_MULTI_DTB_FIT_NO_COMPRESSION=y
 CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_NOWHERE=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_SPL_DM=y