media: atomisp_gmin_platform: Fix axp_regulator_set() writing to the wrong register

The second write done in axp_regulator_set() must go to the ctrl_reg which
turns the various regulators on/off. This replaces the second write
writing the sel_reg, which sets the voltage for the regulator, for a
second time with a wrong value.

Link: https://lore.kernel.org/linux-media/20220116215204.307649-5-hdegoede@redhat.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c

@@ -741,7 +741,7 @@ static int axp_regulator_set(struct device *dev, struct gmin_subdev *gs,
 
 	val = on ? 1 << shift : 0;
 
-	ret = gmin_i2c_write(dev, gs->pwm_i2c_addr, sel_reg, val, 1 << shift);
+	ret = gmin_i2c_write(dev, gs->pwm_i2c_addr, ctrl_reg, val, 1 << shift);
 	if (ret)
 		return ret;