device/device.h: Rename pci_domain_scan_bus

On all targets the domain works as a host bridge. Xeon-sp code intends
to feature multiple host bridges below a domain, hence rename the
function to pci_host_bridge_scan_bus.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I4e65fdbaf0b42c5f4f62297a60d818d299d76f73
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78326
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>
diff --git a/src/northbridge/intel/i440bx/northbridge.c b/src/northbridge/intel/i440bx/northbridge.c
index bc6541f..0670f72 100644
--- a/src/northbridge/intel/i440bx/northbridge.c
+++ b/src/northbridge/intel/i440bx/northbridge.c
@@ -69,7 +69,7 @@
 static struct device_operations pci_domain_ops = {
 	.read_resources		= i440bx_domain_read_resources,
 	.set_resources		= pci_domain_set_resources,
-	.scan_bus		= pci_domain_scan_bus,
+	.scan_bus		= pci_host_bridge_scan_bus,
 };
 
 static int get_cpu_count(void)