[coreboot] Init for multi-processor

[Kyösti Mälkki]

Hi

Could someone explain the use of boot_cpu() in bootblock_normal.c
main()? I thought only the BSP CPU executes this code (currently)?

I am about to push a change that does early SMP init for hyper-threading
CPUs to allow cache-as-ram implementation. Shared cache remains disabled
until both/all logical CPUs enable it.

Thanks,
Kyösti