pinctrl: single: Fix type in .pin_config_group_get() callback

On 64-bit platforms, "unsigned long" is 64-bit.  Hence checking if all
"unsigned long" configuration values are equal should be done using an
"unsigned long" temporary.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linusw@kernel.org>

Author: geertu

drivers/pinctrl/pinctrl-single.c

@@ -619,8 +619,9 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
 static int pcs_pinconf_group_get(struct pinctrl_dev *pctldev,
 				unsigned group, unsigned long *config)
 {
+	unsigned long old = 0;
 	const unsigned *pins;
-	unsigned npins, old = 0;
+	unsigned npins;
 	int i, ret;
 
 	ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);