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/i2c/i2c.c b/src/soc/intel/common/block/i2c/i2c.c
index 70f2c21..ffcc4a6 100644
--- a/src/soc/intel/common/block/i2c/i2c.c
+++ b/src/soc/intel/common/block/i2c/i2c.c
@@ -183,7 +183,9 @@
 	.ops_i2c_bus			= &dw_i2c_bus_ops,
 	.ops_pci			= &pci_dev_ops_pci,
 	.init				= dw_i2c_device_init,
+#if CONFIG(HAVE_ACPI_TABLES)
 	.acpi_fill_ssdt_generator	= dw_i2c_acpi_fill_ssdt,
+#endif
 };
 
 static const unsigned short pci_device_ids[] = {