Migrate 2065x to SMM_MODULES

This gets rid of ugly tseg_relocate for ibexpeak.

This is backport of 29ffa54969 to ibexpeak.

Change-Id: I456d85abdbadb2fdccf77ca771e2518cf8b8c536
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/10352
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/southbridge/intel/ibexpeak/pch.h

@@ -67,6 +67,11 @@ void intel_pch_finalize_smm(void);
 #include "chip.h"
 void pch_enable(device_t dev);
 #endif
+/* These helpers are for performing SMM relocation. */
+void southbridge_smm_init(void);
+void southbridge_trigger_smi(void);
+void southbridge_clear_smi_status(void);
+
 int pch_silicon_revision(void);
 int pch_silicon_type(void);
 int pch_silicon_supported(int type, int rev);