[S] Change in coreboot[main]: mb/google/nissa/var/glassway: Tune eMMC DLL values

[Daniel Peng (Code Review)]

Attention is currently required from: Eric Lai, Kapil Porwal, Nick Vaccaro, Paul Menzel, Shawn Ku, Simon Yang, Subrata Banik.

Daniel Peng has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80779?usp=email )

Change subject: mb/google/nissa/var/glassway: Tune eMMC DLL values
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Patch Set 3:

(1 comment)

This change is ready for review.

Commit Message:

https://review.coreboot.org/c/coreboot/+/80779/comment/b2667505_a6a36dd5 :
PS2, Line 9: Update eMMC DLL values to improve initialization reliability.
> How was the tuning done?

Done