configs: j721s2_evm: Enable configs to store env in MMC FAT partition

J721S2 EVM used to store env on eMMC, since EVM and SK uses same
defconfig and there is no eMMC on SK, we need to keep env in an
interface which available on both EVM and SK. So, save env in FAT
partition of MMC SD Card.

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

Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
2 files changed