DockerDevice: Do not change the containers entrypoint

Some containers may use their entrypoint to setup their environment.
Simply overwriting it from our side would disable such setup and
make the containers useless.

Change-Id: I3385858c49aa8217c3191acdb85343ffd6163cf9
Reviewed-by: hjk <hjk@qt.io>

src/plugins/docker/dockerdevicewidget.h

@@ -36,6 +36,7 @@ private:
     QToolButton *m_daemonReset;
     QLabel *m_daemonState;
     QCheckBox *m_runAsOutsideUser;
+    QCheckBox *m_keepEntryPoint;
     Utils::PathListEditor *m_pathsListEdit;
     KitDetector m_kitItemDetector;