acpi: Move PCI functions to separate file

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Idc96b99da9f9037267c0bec2c839014b13ceb8cc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51106
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Lance Zhao
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c
index 0f1cc9c..1713e72 100644
--- a/src/drivers/intel/dptf/dptf.c
+++ b/src/drivers/intel/dptf/dptf.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <acpi/acpigen.h>
+#include <acpi/acpigen_pci.h>
 #include <console/console.h>
 #include <device/device.h>
 #include "chip.h"