gpio: gpio-tps65910.c: fix checkpatch error

Fix :
 gpio/gpio-tps65910.c:136: ERROR: space required before the open parenthesis '('
Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-tps65910.c

@@ -133,7 +133,7 @@ static int tps65910_gpio_probe(struct platform_device *pdev)
 	tps65910_gpio->gpio_chip.owner = THIS_MODULE;
 	tps65910_gpio->gpio_chip.label = tps65910->i2c_client->name;
 
-	switch(tps65910_chip_id(tps65910)) {
+	switch (tps65910_chip_id(tps65910)) {
 	case TPS65910:
 		tps65910_gpio->gpio_chip.ngpio = TPS65910_NUM_GPIO;
 		break;