Change in coreboot[master]: soc/amd/common: Add initial support for AMD PSP

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/19753 )

Change subject: soc/amd/common: Add initial support for AMD PSP
......................................................................

Patch Set 14:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/56375/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/11966/ : SUCCESS