SECURE_BOOT: Enable chain of trust in SPL framework

SECURE_BOOT: Enable chain of trust in SPL framework

Override jump_to_image_no_args function to include validation of
u-boot image using spl_validate_uboot before jumping to u-boot image.
Also define macros in SPL framework to enable crypto operations.

Reviewed-by: Aneesh Bansal <[email protected]>
Signed-off-by: Sumit Garg <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: York Sun <[email protected]>