media: staging: max96712: Move link frequency setting to device struct

media: staging: max96712: Move link frequency setting to device struct

Prepare for supporting MAX96724 by moving the soon device specific link
frequency setting into information structure. This struct will be
extended to carry more differences between the two devices supported.

While at it remove trailing comma in device table, no entries will be
appended after the sentinel.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>