sb/intel/ibexpeak: Use common Intel SMM code

TODO in followup patch: Some not mainboard specific things should be
moved out of mainboard_smi_apmc.

Change-Id: Ifc2d8f7755ace598e66b162d071d472093e4656e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/26296
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/mainboard/packardbell/ms2290/smihandler.c

@@ -18,9 +18,9 @@
 #include <cpu/x86/smm.h>
 #include <device/pci_ops.h>
 #include <southbridge/intel/ibexpeak/nvs.h>
-#include <southbridge/intel/ibexpeak/pch.h>
 #include <southbridge/intel/ibexpeak/me.h>
 #include <southbridge/intel/common/finalize.h>
+#include <southbridge/intel/common/pmutil.h>
 #include <northbridge/intel/nehalem/nehalem.h>
 #include <cpu/intel/model_2065x/model_2065x.h>
 #include <ec/acpi/ec.h>