regulator: change debug statement be consistent with the style of the rest

change the "mc13783_regulator_probe" string in the function
"mc13783_regulator_probe" to "__func__" for the debug statement be consistent
with the style of the rest of the file.
Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/regulator/mc13783-regulator.c

@@ -341,7 +341,7 @@ static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
 	struct mc13783_regulator_init_data *init_data;
 	int i, ret;
 
-	dev_dbg(&pdev->dev, "mc13783_regulator_probe id %d\n", pdev->id);
+	dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
 
 	priv = kzalloc(sizeof(*priv) +
 			pdata->num_regulators * sizeof(priv->regulators[0]),