[media] m88ds3103: a couple missing error codes

We need to set some error codes here.

Fixes: f01919e8 ('[media] m88ds3103: add I2C client binding')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>