gpio: mockup: coding style fixes

Fix whitespace errors and arrange local variables for better
readability.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-mockup.c

@@ -120,12 +120,9 @@ static int mockup_gpio_add(struct device *dev,
 
 static int mockup_gpio_probe(struct platform_device *pdev)
 {
-	struct device *dev = &pdev->dev;
 	struct mockup_gpio_controller *cntr;
-	int ret;
-	int i;
-	int base;
-	int ngpio;
+	struct device *dev = &pdev->dev;
+	int ret, i, base, ngpio;
 	char *chip_name;
 
 	if (gpio_mockup_params_nr < 2)