pinctrl: stmfx: Use string_choices API instead of ternary operator

Use modern string_choices API instead of manually determining the
output using ternary operator.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/20240826095306.1420628-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: andy-shev

drivers/pinctrl/pinctrl-stmfx.c

@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/seq_file.h>
+#include <linux/string_choices.h>
 
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinmux.h>
@@ -369,14 +370,14 @@ static void stmfx_pinconf_dbg_show(struct pinctrl_dev *pctldev,
 		return;
 
 	if (dir == GPIO_LINE_DIRECTION_OUT) {
-		seq_printf(s, "output %s ", val ? "high" : "low");
+		seq_printf(s, "output %s ", str_high_low(val));
 		if (type)
 			seq_printf(s, "open drain %s internal pull-up ",
 				   pupd ? "with" : "without");
 		else
 			seq_puts(s, "push pull no pull ");
 	} else {
-		seq_printf(s, "input %s ", val ? "high" : "low");
+		seq_printf(s, "input %s ", str_high_low(val));
 		if (type)
 			seq_printf(s, "with internal pull-%s ",
 				   pupd ? "up" : "down");