soc/amd/cezanne,picasso/chipset.cb: drop LAPIC device

After adding code to handle the case of missing the link/bus on the CPU
cluster device in mp_cpu_bus_init, there's no need to have the LAPIC
device in the devicetree any more.

TEST=Mandolin still boots successfully.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Icfc4fb61b373129f3bf4f4de09c38076a8f66733
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58510
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/cezanne/chipset.cb

@@ -1,6 +1,5 @@
 chip soc/amd/cezanne
 	device cpu_cluster 0 on
-		device lapic 0 on end
 	end
 	device domain 0 on
 		device pci 00.0 alias gnb on end

src/soc/amd/picasso/chipset.cb

@@ -2,7 +2,6 @@
 
 chip soc/amd/picasso
 	device cpu_cluster 0 on
-		device lapic 0 on end
 	end
 	device domain 0 on
 		device pci 00.0 alias gnb on end