sb/intel/common: Refactor _PRT generation to support GSI-based tables

Newer Intel SoCs also support _PRT tables, but they route PCI devices to
more than just PIRQs, and statically specify IRQs instead of using link
devices. Extend/refactor intel_acpi_gen_def_acpi_pirq to support this
additional use case.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ica420a3d12fd1d64c8fe6e4b326fd779b3f10868
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50857
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c
index 08019ac..9c3b0e9 100644
--- a/src/southbridge/intel/i82801gx/lpc.c
+++ b/src/southbridge/intel/i82801gx/lpc.c
@@ -16,6 +16,7 @@
 #include <acpi/acpigen.h>
 #include <arch/smp/mpspec.h>
 #include <southbridge/intel/common/acpi_pirq_gen.h>
+#include <southbridge/intel/common/rcba_pirq.h>
 #include <southbridge/intel/common/hpet.h>
 #include <southbridge/intel/common/pmbase.h>
 #include <southbridge/intel/common/spi.h>