asus/p2b, emulation/qemu-i440fx: Use ACPI_COMMON_MADT_IOAPIC

For uni-processor platforms, with SMP=n or MAX_CPUS=1,
neither the LAPIC or IOAPIC MADT entries are added.

Change-Id: I8777f4e3b37fe7b564189c6bf48e3988026b2361
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74353
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/emulation/qemu-i440fx/Kconfig

@@ -2,7 +2,6 @@ if BOARD_EMULATION_QEMU_X86_I440FX
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
-	select ACPI_COMMON_MADT_LAPIC
 	select CPU_QEMU_X86
 	select NO_ECAM_MMCONF_SUPPORT
 	select SOUTHBRIDGE_INTEL_I82371EB

src/mainboard/emulation/qemu-i440fx/acpi_tables.c

@@ -1,23 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <acpi/acpi.h>
-#include <arch/ioapic.h>
-#include <arch/smp/mpspec.h>
-#include <device/device.h>
-
-#include "fw_cfg.h"
-#include "acpi.h"
-
-unsigned long acpi_fill_madt(unsigned long current)
-{
-	/* IOAPIC */
-	current += acpi_create_madt_ioapic_from_hw((acpi_madt_ioapic_t *)current, IO_APIC_ADDR);
-
-	/* INT_SRC_OVR */
-	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
-		 current, 0, 0, 2, 0);
-	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
-		 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
-
-	return current;
-}

src/southbridge/intel/i82371eb/Kconfig

@@ -1,4 +1,7 @@
 config SOUTHBRIDGE_INTEL_I82371EB
+	select ACPI_COMMON_MADT_IOAPIC if SMP
+	select ACPI_COMMON_MADT_LAPIC if SMP
+	select ACPI_NO_CUSTOM_MADT
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select SOUTHBRIDGE_INTEL_COMMON_SMBUS
 	select SOUTHBRIDGE_INTEL_COMMON_RTC