[media] zoran: use standard core lock

Use the standard core lock to take care of serializing ioctl calls and
to serialize file operations.

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

diff --cc drivers/media/pci/zoran/zoran.h
Simple merge

diff --cc drivers/media/pci/zoran/zoran_card.c
Simple merge

diff --cc drivers/media/pci/zoran/zoran_driver.c
Simple merge