mb/google/volteer: move mipi_camera.asl to variants folders

Moves mipi_camera.asl from mb/google/volteer/acpi/ to
mb/google/volteer/variant/baseboard/include/baseboard/acpi/.

Adds mipi_camera.asl to variant/[volteer|ripto]/include/acpi/.

Adds new VARIANT_HAS_MIPI_CAMERA Kconfig option.

Adds VARIANT_HAS_MIPI_CAMERA for volteer and ripto variants.

BUG=b:154648941, b:154646959
TEST="emerge-volteer coreboot chromeos-bootimage", flash and boot
Ripto and Volteer to kernel.

Change-Id: I2f28243dfb945857d26f27f07968a15a3eeb7a4f
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40578
Reviewed-by: William Wei <wenxu.wei@bitland.corp-partner.google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/volteer/Kconfig

@@ -76,4 +76,8 @@ config VARIANT_DIR
 	default "ripto" if BOARD_GOOGLE_RIPTO
 	default "volteer" if BOARD_GOOGLE_VOLTEER
 
+config VARIANT_HAS_MIPI_CAMERA
+	bool
+	default n
+
 endif # BOARD_GOOGLE_BASEBOARD_VOLTEER

src/mainboard/google/volteer/Kconfig.name

@@ -11,7 +11,9 @@ config BOARD_GOOGLE_MALEFOR
 config BOARD_GOOGLE_RIPTO
 	bool "-> Ripto"
 	select BOARD_GOOGLE_BASEBOARD_VOLTEER
+	select VARIANT_HAS_MIPI_CAMERA
 
 config BOARD_GOOGLE_VOLTEER
 	bool "-> Volteer"
 	select BOARD_GOOGLE_BASEBOARD_VOLTEER
+	select VARIANT_HAS_MIPI_CAMERA

src/mainboard/google/volteer/dsdt.asl

@@ -47,7 +47,10 @@ DefinitionBlock(
 	}
 
 	#include <southbridge/intel/common/acpi/sleepstates.asl>
+
+#if CONFIG(VARIANT_HAS_MIPI_CAMERA)
 	/* Camera */
 	#include <soc/intel/tigerlake/acpi/ipu.asl>
-	#include "acpi/mipi_camera.asl"
+	#include <variant/acpi/mipi_camera.asl>
+#endif /* VARIANT_HAS_MIPI_CAMERA */
 }

src/mainboard/google/volteer/variants/ripto/include/variant/acpi/mipi_camera.asl

@@ -0,0 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
+
+#include <baseboard/acpi/mipi_camera.asl>

src/mainboard/google/volteer/variants/volteer/include/variant/acpi/mipi_camera.asl

@@ -0,0 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
+
+#include <baseboard/acpi/mipi_camera.asl>