Add a kernel config fragment enabling dm-verity and its crypto
dependencies (CONFIG_DM_VERITY, CONFIG_DM_CRYPT, CONFIG_BLK_DEV_DM).
Applied via KERNEL_CONFIG_FRAGMENTS, which setup-defconfig.inc reads
and merges directly through merge_config.sh.
Gated on DM_VERITY_IMAGE being set, matching the rest of the dm-verity
dynamic layer.
Signed-off-by: Atharv Dubey <a-dubey@ti.com>
Signed-off-by: Ryan Eatmon <reatmon@ti.com>
