media: i2c: imx290: Print error code when I2C transfer fails

Knowing why I2C transfers fail is useful for debugging. Extend the error
message to print the error code.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>