media: pxa_camera: Fix an error handling path in pxa_camera_probe()

The commit in Fixes has reordered the code and the error handling path.
However one 'goto' was missed.

Fix it and branch at the correct place in the error handling path.

Fixes: 5073d10c ("media: pxa_camera: Register V4L2 device early")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>