Wrap V4L2Device::toColorspace() inside a private static member
function in V4L2VideoDevice class. It improves readability in
setting the colorspace for V4L2DeviceFormat.
No functional changes intended.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>