[media] vivid: Add support for HSV formats

This patch adds support for V4L2_PIX_FMT_HSV24 and V4L2_PIX_FMT_HSV32.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>