sb/intel/*: Use common files for PCIe ACPI

The result is that i82801{g,i,j}x now use the correct _PRT table for
their root port number.

Change-Id: I92bba3c669f3e6a44a42e19a88a33dfcfc2b9b42
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30528
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>
diff --git a/src/southbridge/intel/i82801gx/acpi/ich7.asl b/src/southbridge/intel/i82801gx/acpi/ich7.asl
index c28f4b9..38ca483 100644
--- a/src/southbridge/intel/i82801gx/acpi/ich7.asl
+++ b/src/southbridge/intel/i82801gx/acpi/ich7.asl
@@ -163,7 +163,7 @@
 #include "audio.asl"
 
 // PCI Express Ports
-#include "pcie.asl"
+#include <southbridge/intel/common/acpi/pcie.asl>
 
 // USB
 #include "usb.asl"