net: marvell: mvpp2: Fix W=1 warning with !CONFIG_ACPI

rivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:7084:36: warning: ‘mvpp2_acpi_match’ defined but not used [-Wunused-const-variable=]
 7084 | static const struct acpi_device_id mvpp2_acpi_match[] = {
      |                                    ^~~~~~~~~~~~~~~~

Wrap the definition inside #ifdef/#endif.

Compile tested only.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

@@ -7081,11 +7081,13 @@ static const struct of_device_id mvpp2_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mvpp2_match);
 
+#ifdef CONFIG_ACPI
 static const struct acpi_device_id mvpp2_acpi_match[] = {
 	{ "MRVL0110", MVPP22 },
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, mvpp2_acpi_match);
+#endif
 
 static struct platform_driver mvpp2_driver = {
 	.probe = mvpp2_probe,