spi: spi-amd: Do not define 'struct acpi_device_id' when !CONFIG_ACPI

Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct 'spi_acpi_match' becomes defined but unused.

Fixes the following W=1 kernel build warning(s):

 drivers/spi/spi-amd.c:297:36: warning: ‘spi_acpi_match’ defined but not used [-Wunused-const-variable=]
 297 | static const struct acpi_device_id spi_acpi_match[] = {
 | ^~~~~~~~~~~~~~

Signed-off-by: Lee Jones <[email protected]>
Cc: Sanjay R Mehta <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: Lee Jones

drivers/spi/spi-amd.c

@@ -294,11 +294,13 @@ static int amd_spi_probe(struct platform_device *pdev)
 	return err;
 }
 
+#ifdef CONFIG_ACPI
 static const struct acpi_device_id spi_acpi_match[] = {
 	{ "AMDI0061", 0 },
 	{},
 };
 MODULE_DEVICE_TABLE(acpi, spi_acpi_match);
+#endif
 
 static struct platform_driver amd_spi_driver = {
 	.driver = {