[M] Change in coreboot[main]: soc/intel/alderlake: Add function to force disable memory channels

[Kapil Porwal (Code Review)]

Attention is currently required from: Angel Pons, Christian Walter, Dinesh Gehlot, Eric Lai, Jamie Chen, Jayvik Desai, Jeremy Soller, Lean Sheng Tan, Michał Kopeć, Michał Żygowski, Nick Vaccaro, Paul Menzel, Piotr Król, Sean Rhodes, Subrata Banik, Tim Crawford.

Kapil Porwal has posted comments on this change by Kapil Porwal. ( https://review.coreboot.org/c/coreboot/+/85529?usp=email )

Change subject: soc/intel/alderlake: Add function to force disable memory channels
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Patch Set 5:

(2 comments)

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

https://review.coreboot.org/c/coreboot/+/85529/comment/b7862b1f_74c68507?usp... :
PS1, Line 237: uint32_t
> should we take only `uint8` for mask disable ?

Ack

https://review.coreboot.org/c/coreboot/+/85529/comment/18bfcd73_1ea5f32c?usp... :
PS1, Line 264: void memcfg_init(FSPM_UPD *memupd, const struct mb_cfg *mb_cfg,
             : 		 const struct mem_spd *spd_info, bool half_populated,
             : 		 uint32_t ch_disable_mask)
> There are multiple ways to implement the solution - […]

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