staging: mt7621-pinctrl: use tabs instead of spaces in some indentations

Kernel coding style use tabs for indent code instead of spaces.
Fix some places where spaces were being used silencing also
checkpatch script complains.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c

@@ -99,7 +99,7 @@ static void rt2880_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctrldev,
 					     struct device_node *np,
 					     struct pinctrl_map **map)
 {
-        const char *function;
+	const char *function;
 	int func = of_property_read_string(np, "ralink,function", &function);
 	int grps = of_property_count_strings(np, "ralink,group");
 	int i;
@@ -108,7 +108,7 @@ static void rt2880_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctrldev,
 		return;
 
 	for (i = 0; i < grps; i++) {
-	        const char *group;
+		const char *group;
 
 		of_property_read_string_index(np, "ralink,group", i, &group);
 
@@ -197,7 +197,7 @@ static int rt2880_pmx_group_enable(struct pinctrl_dev *pctrldev,
 				   unsigned int func, unsigned int group)
 {
 	struct rt2880_priv *p = pinctrl_dev_get_drvdata(pctrldev);
-        u32 mode = 0;
+	u32 mode = 0;
 	u32 reg = SYSC_REG_GPIO_MODE;
 	int i;
 	int shift;