soc/amd/cezanne: add remaining non-ACPI parts of UART support

The ACPI part still needs some more code to be in place, so add that
later.

TEST=Together with the currently not merged rest of the amdfw patch
train applied this results in working serial console in bootblock in
Majolica.

Change-Id: Ia844e86a80c19026ac5b47a5a1e91c2553ea5cca
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49378
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions