pinctrl: imx: off by one in imx_pinconf_group_dbg_show()

The > should really be >= here.  It's harmless because
pinctrl_generic_get_group() will return a NULL if group is invalid.

Fixes: ae75ff81 ("pinctrl: pinctrl-imx: add imx pinctrl core driver")
Reported-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/freescale/pinctrl-imx.c

@@ -383,7 +383,7 @@ static void imx_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
 	const char *name;
 	int i, ret;
 
-	if (group > pctldev->num_groups)
+	if (group >= pctldev->num_groups)
 		return;
 
 	seq_puts(s, "\n");