The missing brackets caused other registers, including the IO APIC
enable bit (EAN in OIC) to be overwritten. Bug introduced by
bde6d309 (x86: Change MMIO addr in readN(addr)/writeN(addr, val) to pointer)
Change-Id: I1d5aa2af6d74405a1a125af6221ac0e635a6b693
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/12525
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
316170e22c