[XS] Change in coreboot[main]: mb/google/ovis/var/deku: Remove DSP setting

[Tony Huang (Code Review)]

Attention is currently required from: Derek Huang, Dinesh Gehlot, Eran Mitrani, Jakub Czapiga, Kapil Porwal, Subrata Banik, Tarun.

Tony Huang has posted comments on this change by Tony Huang. ( https://review.coreboot.org/c/coreboot/+/84139?usp=email )

Change subject: mb/google/ovis/var/deku: Remove DSP setting
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Patch Set 1:

(1 comment)

File src/mainboard/google/rex/variants/deku/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/84139/comment/6d283ee3_ac68135a?usp... :
PS1, Line 51:
> I'd like to keep it since it is default setting in the MTL FSP.

Attach enum in chip.h, any suggested value?

/* iDisp-Link T-Mode 0: 2T, 2: 4T, 3: 8T, 4: 16T */
    enum {
    	HDA_TMODE_2T = 0,
    	HDA_TMODE_4T = 2,
    	HDA_TMODE_8T = 3,
    	HDA_TMODE_16T = 4,
    } pch_hda_idisp_link_tmode;
    /* iDisp-Link Freq 4: 96MHz, 3: 48MHz. */
    enum {
    	HDA_LINKFREQ_48MHZ = 3,
    	HDA_LINKFREQ_96MHZ = 4,
    } pch_hda_idisp_link_frequency;