[S] Change in coreboot[master]: soc/amd/picasso: Add support for 64bit builds

[Felix Held (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Matt DeVillier, Arthur Heymans, Fred Reitberger.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63727 )

Change subject: soc/amd/picasso: Add support for 64bit builds
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Patch Set 9: Code-Review+1

(1 comment)

Patchset:

PS9: 
ha, this boots on mandolin when selecting to use the secure vbios execution; this is awesome!
since the native vbios execution is probably broken when building 64bit coreboot for any platform, it might be good to select yabel as default when the vbios gets run in an 64bit build