Replace the use of the old device_t definition inside
southbridge/amd/sb800.
Change-Id: I488cde4504128331106f50b34869905e30f5ab83
Signed-off-by: Antonello Dettori <dev@dettori.io>
Reviewed-on: https://review.coreboot.org/16480
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>