rt2x00: fix warning when building rt2800pci with just soc support

Fix compile warning "rt2800pci.c:1248: warning: 'rt2800pci_device_table'
defined but not used" when building rt2800pci with only soc support
(without pci).
Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Acked-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800pci.c

@@ -1184,6 +1184,7 @@ static const struct rt2x00_ops rt2800pci_ops = {
 /*
  * RT2800pci module information.
  */
+#ifdef CONFIG_RT2800PCI_PCI
 static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
 	{ PCI_DEVICE(0x1814, 0x0601), PCI_DEVICE_DATA(&rt2800pci_ops) },
 	{ PCI_DEVICE(0x1814, 0x0681), PCI_DEVICE_DATA(&rt2800pci_ops) },
@@ -1211,6 +1212,7 @@ static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
 #endif
 	{ 0, }
 };
+#endif /* CONFIG_RT2800PCI_PCI */
 
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);