soc/intel/cannonlake: Guard acpi_fill_ssdt assignment with HAVE_ACPI_TABLES

Change-Id: I3677b4e545599d00a4ba16464836834febc2d1a5
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58024
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/cannonlake/chip.c

@@ -183,7 +183,9 @@ static struct device_operations cpu_bus_ops = {
 	.read_resources   = noop_read_resources,
 	.set_resources    = noop_set_resources,
 	.enable_resources = cpu_set_north_irqs,
+#if CONFIG(HAVE_ACPI_TABLES)
 	.acpi_fill_ssdt   = cpu_fill_ssdt,
+#endif
 };
 
 static void soc_enable(struct device *dev)