libcamera: v4l2_controls: Remove V4L2ControlList class

The V4L2ControlList class only provides a convenience constructor for
the ControlList, which can easily be moved to the ControlList class and
may benefit it later (to construct a ControlList from controls supported
by a camera). Move the constructor and remove V4L2ControlList.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

include/libcamera/controls.h

@@ -170,6 +170,7 @@ private:
 
 public:
 	ControlList(const ControlIdMap &idmap, ControlValidator *validator = nullptr);
+	ControlList(const ControlInfoMap &info, ControlValidator *validator = nullptr);
 
 	using iterator = ControlListMap::iterator;
 	using const_iterator = ControlListMap::const_iterator;