mfd: axp20x: Add axp20x-regulator cell for AXP803

As axp20x-regulator now supports AXP803, add a cell for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
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 1dc6235..917b6dd 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -848,7 +848,8 @@ static struct mfd_cell axp803_cells[] = {
 		.name			= "axp20x-pek",
 		.num_resources		= ARRAY_SIZE(axp803_pek_resources),
 		.resources		= axp803_pek_resources,
-	}
+	},
+	{	.name			= "axp20x-regulator" },
 };
 
 static struct mfd_cell axp806_cells[] = {