media: camss: Take in account sensor skip frames

When streaming is starting ask the sensor for its skip frames value.
Max supported frame skip is 29 frames, so clip it if it is higher.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>