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>

src/libcamera/controls.cpp

@@ -561,6 +561,16 @@ ControlList::ControlList(const ControlIdMap &idmap, ControlValidator *validator)
 {
 }
 
+/**
+ * \brief Construct a ControlList with the idmap of a control info map
+ * \param[in] info The ControlInfoMap for the control list target object
+ * \param[in] validator The validator (may be null)
+ */
+ControlList::ControlList(const ControlInfoMap &info, ControlValidator *validator)
+	: validator_(validator), idmap_(&info.idmap())
+{
+}
+
 /**
  * \typedef ControlList::iterator
  * \brief Iterator for the controls contained within the list