Hi Vishal,
The u-boot.bin and u-boot-keystone-evm.bin should be same.
The u-boot-spl.bin, u-boot.img, and u-boot-spi.gph should be also as same as u-boot-spl-keystone-evm.bin, u-boot-keystone-evm.img, and u-boot-spi-keystone-evm.gph respectively.
Regards,
Atsushi