cpu/intel/model_206ax: Use parallel MP init

This patch adds a few southbridge calls needed for parallel MP init.

Moves the smm_relocate() function to smm/gen1/smi.h, since that is
where this function is defined now.

Tested on Thinkpad X220, shaves off ~30ms on a 2 core, 4 threads CPU.

Change-Id: Ia1d547ed4a3cb6746a0222c3e54e94e5848b0dd7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25618
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/cpu/intel/smm/gen1/smi.h

@@ -11,6 +11,10 @@
  * GNU General Public License for more details.
  */
 
+#include <device/device.h>
+
+void bsp_init_and_start_aps(struct bus *cpu_bus);
+
 /* These helpers are for performing SMM relocation. */
 void southbridge_smm_init(void);
 void southbridge_trigger_smi(void);
@@ -21,3 +25,12 @@ int cpu_get_apic_id_map(int *apic_id_map);
 void northbridge_write_smram(u8 smram);
 
 bool cpu_has_alternative_smrr(void);
+
+/* parallel MP helper functions */
+void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize,
+		size_t *smm_save_state_size);
+void smm_initialize(void);
+void southbridge_smm_clear_state(void);
+void smm_relocation_handler(int cpu, uintptr_t curr_smbase,
+			uintptr_t staggered_smbase);
+void smm_relocate(void);