configs: j7200_evm_*_defconfig: Enable configs for HS400 support

Enable configs to add support for HS400 speed mode.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210525093826.10390-4-a-govindraju@ti.com