[S] Change in coreboot[main]: {commonlib, libpayload}: Add "is external display" in coreboot table

[Subrata Banik (Code Review)]

Attention is currently required from: Andrey Petrov, Arthur Heymans, Julius Werner, Karthik Ramasubramanian, Nick Vaccaro, Yu-Ping Wu.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/77796?usp=email )

Change subject: {commonlib, libpayload}: Add "is_external display" in coreboot table
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Patch Set 4:

(2 comments)

File src/drivers/intel/fsp2_0/Kconfig:

https://review.coreboot.org/c/coreboot/+/77796/comment/5b51a915_72128749 :
PS4, Line 447: config REPORT_EXTERNAL_DISPLAY_AT_PREBOOT
> Is this used anywhere?

SOC should have use that bt lets drop it as suggested by Julius.

File src/drivers/intel/fsp2_0/include/fsp/graphics.h:

https://review.coreboot.org/c/coreboot/+/77796/comment/b1730811_6387368f :
PS4, Line 25: int soc_report_external_display(void);
> If it's declared here (only for intel fsp), then the function name should have the `fsp_` prefix. […]

Acknowledged