arm: orion: use string choices helper

We can use string choices helper, let's use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

Author: morimoto

arch/arm/plat-orion/gpio.c

@@ -468,14 +468,14 @@ static void orion_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 
 		if (is_out) {
 			seq_printf(s, " out %s %s\n",
-				   out & msk ? "hi" : "lo",
+				   str_hi_lo(out & msk),
 				   blink & msk ? "(blink )" : "");
 			continue;
 		}
 
 		seq_printf(s, " in  %s (act %s) - IRQ",
-			   (data_in ^ in_pol) & msk  ? "hi" : "lo",
-			   in_pol & msk ? "lo" : "hi");
+			   str_hi_lo((data_in ^ in_pol) & msk),
+			   str_lo_hi(in_pol & msk));
 		if (!((edg_msk | lvl_msk) & msk)) {
 			seq_puts(s, " disabled\n");
 			continue;