Change in coreboot[master]: soc/intel/alderlake: Add provision to override Rcomp settings

[EricR Lai (Code Review)]

Attention is currently required from: Furquan Shaikh, Tim Wawrzynczak, Subrata Banik, Patrick Rudolph.
EricR Lai has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51683 )

Change subject: soc/intel/alderlake: Add provision to override Rcomp settings
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Patch Set 7:

(1 comment)

File src/soc/intel/alderlake/meminit.c:

https://review.coreboot.org/c/coreboot/+/51683/comment/6f4012b4_35a8783c 
PS7, Line 19: 	if (ddr_config->rcomp_resistor != 0)
@Furquan, Will this accidentally not zero if we set mem_lp5x_config ccc_config? It shares the same space.