soc/amd: commonize PCI root IOAPIC initialization

Make the initialization of the IOAPIC(s) in the PCI root(s) common
across all AMD family 17h+ SoCs. For this the more general
implementation from the Genoa code that supports multiple PC roots is
moved to the common AMD code. All other family 17h+ SoCs are then
adapted to use the common code. For those non-Genoa SoCs, the
initialization of this second IOAPIC is moved from the northbridge
device to the domain device above to match Genoa.

Test=Both the FCH IOAPIC and the PCIe root IOAPIC are still initialized
on Mandolin

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I7c0ec6ac2f11cb11e46248cceec96c1fd2a49c16
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80286
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/amd/cezanne/chip.c

@@ -3,6 +3,7 @@
 #include <amdblocks/acpi.h>
 #include <amdblocks/data_fabric.h>
 #include <amdblocks/fsp.h>
+#include <amdblocks/root_complex.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <device/pci.h>
@@ -29,6 +30,7 @@ struct device_operations cezanne_pci_domain_ops = {
 	.read_resources	= amd_pci_domain_read_resources,
 	.set_resources	= pci_domain_set_resources,
 	.scan_bus	= amd_pci_domain_scan_bus,
+	.init		= amd_pci_domain_init,
 	.acpi_name	= soc_acpi_name,
 	.acpi_fill_ssdt	= amd_pci_domain_fill_ssdt,
 };