soc/amd: Use mp_cpu_bus_init()

Change-Id: Ia4508a9a087e3996ef7667280f8e2788421e5700
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41952
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/src/soc/amd/stoneyridge/chip.c b/src/soc/amd/stoneyridge/chip.c
index 41fcafb..909b847 100644
--- a/src/soc/amd/stoneyridge/chip.c
+++ b/src/soc/amd/stoneyridge/chip.c
@@ -25,7 +25,7 @@
 struct device_operations cpu_bus_ops = {
 	.read_resources	  = noop_read_resources,
 	.set_resources	  = noop_set_resources,
-	.init		  = stoney_init_cpus,
+	.init		  = mp_cpu_bus_init,
 	.acpi_fill_ssdt   = generate_cpu_entries,
 };