media: i2c: imx219: Increase minimum LLP to fix blocky artefacts

media: i2c: imx219: Increase minimum LLP to fix blocky artefacts

The sensor's internal ADC supports a minimum line length of 3448 pixels,
which may be too small to use with analog binning, where ADC operates on
two lines together. Switch to a higher minimum line length of 3560
pixels to fix the blocky artefacts seen with analog binning [1].

To keep the same default framerate as before for all the modes, lower
the default fll value to compensate for the increase in llp.

[1]: https://github.com/raspberrypi/rpicam-apps/issues/281#issuecomment-1082894118

Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>