[M] Change in coreboot[master]: nb/intel/gm45: Export EDID-reading routine as a function

[Arthur Heymans (Code Review)]

Attention is currently required from: Bill XIE.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74180 )

Change subject: nb/intel/gm45: Export EDID-reading routine as a function
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Patch Set 2:

(1 comment)

File src/northbridge/intel/gm45/gma.c:

https://review.coreboot.org/c/coreboot/+/74180/comment/84dc904a_7a426f22 
PS2, Line 161: /*
             : 	 * GTT base is at a 2M offset and is 2M big. If GTT is smaller than 2M
             : 	 * cycles are simply not decoded which is fine.
             : 	 */
             : 	pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
             : 	memset(mmio + 2 * MiB, 0, 2 * MiB);
Not needed for getting EDID.