cpu/intel/haswell: Move chip_ops to cpu cluster

The cpu cluster is always present and it's the proper device to contain
the settings that need to be applied to all cpus. This makes it possible
to remove the fake lapic from devicetrees.

Change-Id: Ic449b2df8036e8c02b5559cca6b2e7479a70a786
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59314
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/soc/intel/broadwell/northbridge.c

@@ -398,7 +398,6 @@ static void systemagent_init(struct device *dev)
 
 static struct device_operations systemagent_ops = {
 	.read_resources   = systemagent_read_resources,
-	.acpi_fill_ssdt   = generate_cpu_entries,
 	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.init             = systemagent_init,
@@ -432,6 +431,7 @@ struct device_operations broadwell_cpu_bus_ops = {
 	.read_resources   = noop_read_resources,
 	.set_resources    = noop_set_resources,
 	.init             = mp_cpu_bus_init,
+	.acpi_fill_ssdt   = generate_cpu_entries,
 };
 
 static void broadwell_init_pre_device(void *chip_info)