mb/google/jecht: Use Haswell CPU code

Change-Id: I6c106b152bb2824e000232d23c2991898b2c4475
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46946
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/jecht/devicetree.cb

@@ -10,7 +10,10 @@ chip soc/intel/broadwell
 	register "gpu_dp_b_hotplug" = "0x06"
 
 	device cpu_cluster 0 on
-		device lapic 0 on end
+		chip cpu/intel/haswell
+			device lapic 0 on end
+			device lapic 0xacac off end
+		end
 	end
 
 	device domain 0 on