v4l2: object: Fix support for format:Interlaced in caps probe

v4l2: object: Fix support for format:Interlaced in caps probe

This notably follow the way we order the template and keeps the
format:Interlaced caps at the end. This change also fixes
an early skip check, that would skip if a driver only supports
alternate interlacing for a specific format. It also fixes
a bug where only the last resolution of a discrete frame size
was allowed to use format:Interlaced. Finally, similar to template
caps code, simplify the caps for earch featurs, making the debug output
manageable and (marginally) improve negotiation speed.

This change will make it easier to introduce memory:DMABuf.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7563>