mb/amd/majolica/devicetree: add CPU cluster

Change-Id: I8d8b7f3ea2502e4e49a1290b07d84d5bbb2924a7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50506
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/amd/majolica/devicetree.cb

@@ -2,6 +2,9 @@
 
 chip soc/amd/cezanne
 
+	device cpu_cluster 0 on
+		device lapic 0 on end
+	end
 	device domain 0 on
 	end