soc/amd/stoneyridge/psp: use PSP_MAILBOX_BAR define

PSP_MAILBOX_BAR is defined as PCI_BASE_ADDRESS_4, so use it instead of
PCI_BASE_ADDRESS_4 in the code.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8658b674b9adea85dfc71d7036ccf3ae17464b58
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59700
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

0 files changed, 0 insertions, 0 deletions