[media] vimc: cap: Support several image formats

Allow user space to change the image format as the frame size, the
pixel format, colorspace, quantization, field YCbCr encoding
and the transfer function

Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>