amd/common/psp: Add BootDone command
After the PSP receives the MboxBiosCmdBootDone, it will no longer honor
any command where the command-response buffer exists outside of SMM
memory. Add the command and automatically execute it before booting
the payload.
BUG=b:
69971683
TEST=Boot Kahlee and observe console log
Change-Id: I8258a9e2f2627bf24342f927a3e7f49b49dc1d88
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22787
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>