power: regulator: act8846: fix reading values

The voltage and control registers need to be looked up from the value in
driver_data.  Adjust the get_value and get_enable functions to match the
corresponding set_* functions.

Signed-off-by: John Keeping <john@metanate.com>
Acked-by: Simon Glass <sjg@chromium.org>

drivers/power/regulator/act8846.c

@@ -88,7 +88,7 @@ static int reg_get_value(struct udevice *dev)
 	int reg = dev->driver_data;
 	int ret;
 
-	ret = pmic_reg_read(dev->parent, reg);
+	ret = pmic_reg_read(dev->parent, addr_vol[reg]);
 	if (ret < 0)
 		return ret;
 
@@ -120,7 +120,7 @@ static bool reg_get_enable(struct udevice *dev)
 	int reg = dev->driver_data;
 	int ret;
 
-	ret = pmic_reg_read(dev->parent, reg);
+	ret = pmic_reg_read(dev->parent, addr_ctl[reg]);
 	if (ret < 0)
 		return ret;