main/u-boot: build U-boot for ODROID XU3/XU4/HC1/HC2/MC1
ODROID XU3/XU4/HC1/HC2/MC1 devices share all the same U-boot config for mainline U-boot. Enable building U-boot for these devices as well.
ODROID XU3/XU4/HC1/HC2/MC1 devices share all the same U-boot config for mainline U-boot. Enable building U-boot for these devices as well.