sb/intel/i82801ix: Use pmutil.h definitions

Also drop now-redundant definitions and include headers where needed.

Tested with BUILD_TIMELESS=1, Roda RK9 remains identical.

Change-Id: I3ddd133a4e81a7f6ce9c33ce227b40006a0d1850
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42658
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/i82801ix/early_init.c b/src/southbridge/intel/i82801ix/early_init.c
index e50232b..86c1a53 100644
--- a/src/southbridge/intel/i82801ix/early_init.c
+++ b/src/southbridge/intel/i82801ix/early_init.c
@@ -3,6 +3,7 @@
 #include <arch/io.h>
 #include <device/pci_ops.h>
 #include <device/smbus_host.h>
+#include <southbridge/intel/common/pmutil.h>
 #include "i82801ix.h"
 #include "chip.h"