[media] media: adv7604: Fix masks used for querying timings in ADV7611

All masks for timings are different between ADV7604 and ADV7611.
Most of the values have 1 precision bit more in the latter.
Fix this by adding new fields to the chip_info structure.

Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>