mb/google/rex: Enable ACPI and add ACPI table

Enable ACPI configuration and add DSDT ACPI table.

BUG=b:224325352
TEST=util/abuild/abuild -p none -t google/rex -a -c max

Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: I8374a9b528f8dff4e23b6bdb4d1368dfd2c79b8e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64620
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index 1c9ed23..d848ac7 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -1,6 +1,7 @@
 config BOARD_GOOGLE_REX_COMMON
 	def_bool n
 	select BOARD_ROMSIZE_KB_32768
+	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
 
 config BOARD_GOOGLE_BASEBOARD_REX
diff --git a/src/mainboard/google/rex/dsdt.asl b/src/mainboard/google/rex/dsdt.asl
index 10d08e2..cecfe52 100644
--- a/src/mainboard/google/rex/dsdt.asl
+++ b/src/mainboard/google/rex/dsdt.asl
@@ -11,4 +11,24 @@
 	0x20110725	// OEM revision
 )
 {
+	/* Some generic macros */
+	#include <acpi/dsdt_top.asl>
+	#include <soc/intel/common/acpi/platform.asl>
+
+	/* global NVS and variables */
+	#include <soc/intel/common/block/acpi/acpi/globalnvs.asl>
+
+	/* CPU */
+	#include <cpu/intel/common/acpi/cpu.asl>
+
+	Scope (\_SB) {
+		Device (PCI0)
+		{
+			#include <soc/intel/common/block/acpi/acpi/northbridge.asl>
+			#include <soc/intel/meteorlake/acpi/southbridge.asl>
+		}
+	}
+
+	/* Chipset specific sleep states */
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
 }