soc/intel: Fix ACPI device operations initialization

Initialize ACPI device operations only when CONFIG_HAVE_ACPI_TABLES is
enabled.

BUG=None
TEST=Build Test

Change-Id: I5c5266885d8b08338d17a87bb95110765882120e
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/soc/intel/common/block/lpc/lpc.c b/src/soc/intel/common/block/lpc/lpc.c
index 258975c..9e86486 100644
--- a/src/soc/intel/common/block/lpc/lpc.c
+++ b/src/soc/intel/common/block/lpc/lpc.c
@@ -112,8 +112,10 @@
 	.read_resources			= pch_lpc_read_resources,
 	.set_resources			= pch_lpc_set_resources,
 	.enable_resources		= pci_dev_enable_resources,
+#if CONFIG(HAVE_ACPI_TABLES)
 	.write_acpi_tables		= southbridge_write_acpi_tables,
 	.acpi_inject_dsdt_generator	= southbridge_inject_dsdt,
+#endif
 	.init				= lpc_soc_init,
 	.scan_bus			= scan_static_bus,
 	.ops_pci			= &pci_dev_ops_pci,