arm: socfpga: Enable FIT signature with crc32 for SOC64 devices

Add signature with crc32 value for all images in binman node for FIT
image in device tree. And, enable FIT signature checking for Stratix10
and Agilex ATF and VAB sdmmc boot.

Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>