[media] hdpvr: embed video_device

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --cc drivers/media/usb/hdpvr/hdpvr-core.c
Simple merge

diff --cc drivers/media/usb/hdpvr/hdpvr-video.c
Simple merge

diff --cc drivers/media/usb/hdpvr/hdpvr.h
Simple merge