libcamera: camera: Fix up the AeEnable control during Camera::start()

In Camera::queueRequest() the control list is updated transparently by
converting AeEnable into ExposureTimeMode and AnalogueGainMode
controls.

However, this was not happening during Camera::start(), meaning that
setting AeEnable there was having no effect. It should behave the same
here too.

Fixes: 7abd413905 ("libcamera: camera: Pre-process AeEnable control")
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

include/libcamera/camera.h

@@ -165,6 +165,8 @@ private:
 	friend class FrameBufferAllocator;
 	int exportFrameBuffers(Stream *stream,
 			       std::vector<std::unique_ptr<FrameBuffer>> *buffers);
+
+	void patchControlList(ControlList &controls);
 };
 
 } /* namespace libcamera */