AGESA binaryPI: Unify agesawrapper header

AMD_S3_PARAMS is no longer defined with all binaryPI.
Guard these as a build fix to share the header nevertheless.

Change-Id: I725ed43991dc1c3e30d236bde4282176819f4cf4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19984
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/northbridge/amd/agesa/agesawrapper.h

@@ -51,8 +51,11 @@ struct OEM_HOOK
 extern const struct OEM_HOOK OemCustomize;
 
 /* For suspend-to-ram support. */
+#if !IS_ENABLED(CONFIG_CPU_AMD_PI)
+/* TODO: With binaryPI we need different interface. */
 AGESA_STATUS OemInitResume(AMD_S3_PARAMS *dataBlock);
 AGESA_STATUS OemS3LateRestore(AMD_S3_PARAMS *dataBlock);
 AGESA_STATUS OemS3Save(AMD_S3_PARAMS *dataBlock);
+#endif
 
 #endif /* _AGESAWRAPPER_H_ */