[media] media: i2c/adp1653: probe: fix erroneous return value

The adp1653_probe() function may return positive value EINVAL
which is obviously wrong.

Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>