mfd: axp20x: Fix axp288 PEK_DBR and PEK_DBF irqs being swapped

The R in PEK_DBR stands for rising, so it should be mapped to
AXP288_IRQ_POKP where the last P stands for positive edge.

Likewise PEK_DBF should be mapped to the falling edge, aka the
_N_egative edge, so it should be mapped to AXP288_IRQ_POKN.

This fixes the inverted powerbutton status reporting by the
axp20x-pek driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index 89b2ee5..26ea174 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -207,14 +207,14 @@
 static struct resource axp288_power_button_resources[] = {
 	{
 		.name	= "PEK_DBR",
-		.start	= AXP288_IRQ_POKN,
-		.end	= AXP288_IRQ_POKN,
+		.start	= AXP288_IRQ_POKP,
+		.end	= AXP288_IRQ_POKP,
 		.flags	= IORESOURCE_IRQ,
 	},
 	{
 		.name	= "PEK_DBF",
-		.start	= AXP288_IRQ_POKP,
-		.end	= AXP288_IRQ_POKP,
+		.start	= AXP288_IRQ_POKN,
+		.end	= AXP288_IRQ_POKN,
 		.flags	= IORESOURCE_IRQ,
 	},
 };