sh-pfc: Fix PINMUX_GPIO macro

Commit 7cbb0e55e27e ("sh-pfc: Don't duplicate argument to PINMUX_GPIO
macro") erronesouly modified the PINMUX_GPIO macro in a way that
resulted in all pins being named "name". Fix the macro to name the pins
correctly.

Cc: stable@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/sh-pfc/sh_pfc.h

@@ -254,7 +254,7 @@ struct sh_pfc_soc_info {
 #define PINMUX_GPIO(_pin)						\
 	[GPIO_##_pin] = {						\
 		.pin = (u16)-1,						\
-		.name = __stringify(name),				\
+		.name = __stringify(GPIO_##_pin),			\
 		.enum_id = _pin##_DATA,					\
 	}