sb,soc/intel: Replace smm_southbridge_enable_smi()

Change-Id: I8a2e8b0c104d9e08f07aeb6a2c32106480ace3e5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41961
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/cpu/intel/haswell/haswell_init.c

@@ -745,7 +745,7 @@ static void post_mp_init(void)
 {
 	/* Now that all APs have been relocated as well as the BSP let SMIs
 	 * start flowing. */
-	smm_southbridge_enable_smi();
+	global_smi_enable();
 
 	/* Lock down the SMRAM space. */
 	smm_lock();