pinctrl: amd: Only use special debounce behavior for GPIO 0

It's uncommon to use debounce on any other pin, but technically
we should only set debounce to 0 when working off GPIO0.

Cc: [e-mail]
Tested-by: Jan Visser <[e-mail]>
Fixes: 968ab9261627 ("pinctrl: amd: Detect internal GPIO0 debounce handling")
Signed-off-by: Mario Limonciello <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/pinctrl-amd.c

···
 	raw_spin_lock_irqsave(&gpio_dev->lock, flags);
 
 	/* Use special handling for Pin0 debounce */
-	pin_reg = readl(gpio_dev->base + WAKE_INT_MASTER_REG);
-	if (pin_reg & INTERNAL_GPIO0_DEBOUNCE)
-		debounce = 0;
+	if (offset == 0) {
+		pin_reg = readl(gpio_dev->base + WAKE_INT_MASTER_REG);
+		if (pin_reg & INTERNAL_GPIO0_DEBOUNCE)
+			debounce = 0;
+	}
 
 	pin_reg = readl(gpio_dev->base + offset * 4);