ACPI S3: Replace acpi_is_wakeup()

It was supposed to return true for both S2 and S3, but
level S2 was never stored in acpi_slp_type or otherwise
implemented.

Change-Id: Ida0165e647545069c0d42d38b9f45a95e78dacbe
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47693
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/cpu/amd/agesa/family14/model_14_init.c

@@ -52,7 +52,7 @@ static void model_14_init(struct device *dev)
 	msr.lo |= SYSCFG_MSR_MtrrFixDramEn;
 	wrmsr(SYSCFG_MSR, msr);
 
-	if (acpi_is_wakeup())
+	if (acpi_is_wakeup_s3())
 		restore_mtrr();
 
 	x86_mtrr_check();

src/cpu/amd/agesa/family15tn/model_15_init.c

@@ -51,7 +51,7 @@ static void model_15_init(struct device *dev)
 	msr.lo |= SYSCFG_MSR_MtrrFixDramEn;
 	wrmsr(SYSCFG_MSR, msr);
 
-	if (acpi_is_wakeup())
+	if (acpi_is_wakeup_s3())
 		restore_mtrr();
 
 	x86_mtrr_check();

src/cpu/amd/agesa/family16kb/model_16_init.c

@@ -49,7 +49,7 @@ static void model_16_init(struct device *dev)
 	msr.lo |= SYSCFG_MSR_MtrrFixDramEn;
 	wrmsr(SYSCFG_MSR, msr);
 
-	if (acpi_is_wakeup())
+	if (acpi_is_wakeup_s3())
 		restore_mtrr();
 
 	x86_mtrr_check();