soc/amd/stoneyridge: move to using smbus_host.h definitions

The SMBus function declarations were duplicated. Use the common
ones provided by smbus_host.h.

Change-Id: Ic912b91daf79ecd2c276a383edcda563891cf643
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38222
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/stoneyridge/sm.c b/src/soc/amd/stoneyridge/sm.c
index 2dba0d7..6ecf1cd 100644
--- a/src/soc/amd/stoneyridge/sm.c
+++ b/src/soc/amd/stoneyridge/sm.c
@@ -17,10 +17,10 @@
 #include <device/pci.h>
 #include <device/pci_ids.h>
 #include <device/smbus.h>
+#include <device/smbus_host.h>
 #include <cpu/x86/lapic.h>
 #include <arch/ioapic.h>
 #include <soc/southbridge.h>
-#include <soc/smbus.h>
 
 /*
 * The southbridge enables all USB controllers by default in SMBUS Control.