sh: pfc: Export pinctrl binding init symbol.

symbol_request() requires the registration symbol to be exported, make
sure it is.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/sh/pfc/pinctrl.c b/drivers/sh/pfc/pinctrl.c
index fe1750e..4eaf24b 100644
--- a/drivers/sh/pfc/pinctrl.c
+++ b/drivers/sh/pfc/pinctrl.c
@@ -283,6 +283,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(sh_pfc_register_pinctrl);
 
 static inline void __devinit sh_pfc_map_one_gpio(struct sh_pfc *pfc,
 						 struct sh_pfc_pinctrl *pmx,