It is only called in ramstage. Even if it was called in
romstage, execution flow is such that BSP and AP CPUs
should not be able to enter update_microcode() routine
concurrently.
Also the Kconfig guarding the spin_lock() calls are not
selected nor are the lock variables declared for these
platforms.
Change-Id: I1c2e106f10e8420e942b3ed082c677c0db95557c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35586
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>