Change in coreboot[master]: intelblocks/graphics: Define custom read resource function

[Maulik V Vaghela (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak.
Maulik V Vaghela has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/64723 )

Change subject: intelblocks/graphics: Define custom read resource function
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Patch Set 2:

(1 comment)

File src/soc/intel/common/block/graphics/graphics.c:

https://review.coreboot.org/c/coreboot/+/64723/comment/512e0a60_ae050385 
PS2, Line 167: __weak void graphics_dev_read_resources(struct device *dev)
> I'd rather not keep this as weak, and see if we can accommodate custom resources with a Kconfig?

Thank you Tim. I'll upload a revised patch with more details and Kconfig.