soc/intel/tigerlake: Add IPU in ACPI

Add IPU ACPI object for Camera ACPI.

BUG=none
BRANCH=none
TEST=Build and boot tigerlake rvp board

Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: I8c1ca9c053f0c8ef8d7c027c317c7af74d5f0f8c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38469
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Pratikkumar V Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>

src/soc/intel/tigerlake/acpi/ipu.asl

@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+Scope (\_SB.PCI0)
+{
+	Device (IPU0)
+	{
+		Name (_ADR, 0x00050000)
+		Name (_DDN, "Camera and Imaging Subsystem")
+	}
+}