Xcb plugin recognizes Cursor Controls trackball devices as a tablet

QXcbConnection::xi2SetupDevices() (qtbase/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp) has an algorithm to recognize if the input device is a tablet or not. If the xinput device name contains "cursor" the device is recognized as a tablet. But now the Cursor Controls trackball devices has the manufacturer's name in the device name, which causes them to be recognized invalidly as a tablet.