Camera: video stream request fixup

This fixes getting the video stream.

src/Camera/QGCCameraControl.cc

@@ -1796,7 +1796,7 @@ QGCCameraControl::_requestStreamInfo(uint8_t streamID)
     qCDebug(CameraControlLog) << "Requesting video stream info for:" << streamID;
     // By default, try to use new REQUEST_MESSAGE command instead of 
     // deprecated MAV_CMD_REQUEST_VIDEO_STREAM_INFORMATION.
-    if (_videoStreamStatusRetries % 2 == 0) {
+    if (_videoStreamStatusRetries++ % 2 == 0) {
         _vehicle->sendMavCommand(
             _compID,                                         // target component
             MAV_CMD_REQUEST_MESSAGE,                        // command id
@@ -1904,7 +1904,6 @@ QGCCameraControl::_streamInfoTimeout()
 void
 QGCCameraControl::_streamStatusTimeout()
 {
-    _videoStreamStatusRetries++;
     QGCVideoStreamInfo* pStream = currentStreamInstance();
     if(pStream) {
         _requestStreamStatus(static_cast<uint8_t>(pStream->streamID()));