tc: Make tc_match_device() static

Unlike its PCI counterpart, tc_match_device() was never used outside
the TURBOchannel bus code.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Paul Burton <[e-mail]>
Cc: Maciej W . Rozycki <[e-mail]>
Cc: Ralf Baechle <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]

drivers/tc/tc-driver.c

···
  * system is in its list of supported devices.  Returns the matching
  * tc_device_id structure or %NULL if there is no match.
  */
-const struct tc_device_id *tc_match_device(struct tc_driver *tdrv,
-					   struct tc_dev *tdev)
+static const struct tc_device_id *tc_match_device(struct tc_driver *tdrv,
+						  struct tc_dev *tdev)
 {
 	const struct tc_device_id *id = tdrv->id_table;
 
···
 	}
 	return NULL;
 }
-EXPORT_SYMBOL(tc_match_device);
 
 /**
  * tc_bus_match - Tell if a device structure has a matching