More dv_timings ioctl ops are introduced in video core.
Add query_dv_timings/enum_dv_timings accordingly.
Signed-off-by: NScott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>