soc/amd/common/block/psp/psb: add missing amdblocks/smn.h include

smn_read32 is used in this file, so include the header file with the
function prototype so that the file compiles successfully.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I5bef96cd08f22b3475e8b5ba4e984a6e1ab4da36
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66913
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>

0 files changed, 0 insertions, 0 deletions