media: imagination: fix a potential memory leak in e5010_probe()

Add video_device_release() to release the memory allocated by
video_device_alloc() if something goes wrong.

Fixes: a1e29404 ("media: imagination: Add E5010 JPEG Encoder driver")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>