[coreboot-gerrit] Change in coreboot[master]: boot_device: Add boot_device_lockdown

[Philipp Deppenwiese (Code Review)]

Attention is currently required from: Patrick Rudolph, Arthur Heymans.
Philipp Deppenwiese has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/39925 )

Change subject: boot_device: Add boot_device_lockdown
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Patch Set 6: Code-Review+2

(1 comment)

File src/southbridge/intel/common/finalize.c:

https://review.coreboot.org/c/coreboot/+/39925/comment/6b2605d0_0ea4f5a2 
PS6, Line 30: /* Lock SPIBAR */
            : 	RCBA32_OR(0x3804, (1 << 15));
> This removes the option to lock SPIBAR via SMM. Not sure if anyone cares to do it that way anymore.. […]

¯_(ツ)_/¯