device: Use scan_static_bus() over scan_lpc_bus()

Devices behind LPC can expose more buses (e.g. I2C on a super-i/o).
So we should scan buses on LPC devices, too.

Change-Id: I0eb005e41b9168fffc344ee8e666d43b605a30ba
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29474
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/northbridge/via/vx900/lpc.c

@@ -235,7 +235,7 @@ static struct device_operations vx900_lpc_ops = {
 	.set_resources = vx900_lpc_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.init = vx900_lpc_init,
-	.scan_bus = scan_lpc_bus,
+	.scan_bus = scan_static_bus,
 };
 
 static const struct pci_driver lpc_driver __pci_driver = {

src/northbridge/via/vx900/traf_ctrl.c

@@ -132,7 +132,7 @@ static struct device_operations traf_ctrl_ops = {
 	.init = vx900_traf_ctr_init,
 	/* Need this here, or the IOAPIC driver won't be called.
 	 * FIXME: Technically not a LPC bus. */
-	.scan_bus = scan_lpc_bus,
+	.scan_bus = scan_static_bus,
 };
 
 static const struct pci_driver traf_ctrl_driver __pci_driver = {