Change in coreboot[master]: mb/google/zork/vilboz: Enable SSFC function in vilboz

[Frank Wu (Code Review)]

Attention is currently required from: Furquan Shaikh, Martin Roth, Kangheui Won, Isaac Lee, Marco Chen, EricR Lai.
Frank Wu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52261 )

Change subject: mb/google/zork/vilboz: Enable SSFC function in vilboz
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Patch Set 2:

(1 comment)

Patchset:

PS2: 
Hi Google,

Would you give us some suggestion?

The audio amp source selection depends on SSFC.
We can use the command to set SSFC "ectool cbi set 8 0x0 4" for old vilboz devices.
The SSFC-updated script is under review now.

This CL prevents other zork platform devices from SSFC.
For now, the SSFC is removed in zork firmware branch.
2820811: Revert "UPSTREAM: mb/google/zork: Enable SSFC as upper 32 bit of fw_config" | https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+...

Details:
https://partnerissuetracker.corp.google.com/issues/184233670#comment9