specialix: fix compiler warning on specialix_pci_tbl

Annotate specialx_pci_tbl as '__used' to fix following warning:

CC drivers/char/specialix.o
drivers/char/specialix.c:2358: warning: ‘specialx_pci_tbl’ defined but not used

Signed-off-by: Namhyung Kim <[e-mail]>
Cc: Roger Wolff <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/char/specialix.c

···
 	func_exit();
 }
 
-static struct pci_device_id specialx_pci_tbl[] __devinitdata = {
+static struct pci_device_id specialx_pci_tbl[] __devinitdata __used = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_IO8) },
 	{ }
 };