cpu/x86/smm: Use common APMC logging

Unify the debug messages on raised SMIs.

Change-Id: I34eeb41d929bfb18730ac821a63bde95ef9a0b3e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49248
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/broadwell/pch/smihandler.c b/src/soc/intel/broadwell/pch/smihandler.c
index 5ed52d8..02c795e 100644
--- a/src/soc/intel/broadwell/pch/smihandler.c
+++ b/src/soc/intel/broadwell/pch/smihandler.c
@@ -312,23 +312,17 @@
 {
 	u8 reg8;
 
-	/* Emulate B2 register as the FADT / Linux expects it */
-
-	reg8 = inb(APM_CNT);
+	reg8 = apm_get_apmc();
 	switch (reg8) {
 	case APM_CNT_CST_CONTROL:
-		printk(BIOS_DEBUG, "C-state control\n");
 		break;
 	case APM_CNT_PST_CONTROL:
-		printk(BIOS_DEBUG, "P-state control\n");
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		disable_pm1_control(SCI_EN);
-		printk(BIOS_DEBUG, "SMI#: ACPI disabled.\n");
 		break;
 	case APM_CNT_ACPI_ENABLE:
 		enable_pm1_control(SCI_EN);
-		printk(BIOS_DEBUG, "SMI#: ACPI enabled.\n");
 		break;
 	case APM_CNT_ELOG_GSMI:
 		if (CONFIG(ELOG_GSMI))