Add vuplus-checkvfd used to FirmwareUpgrade plugin for duo2.
[vuplus_enigma2_packages] Update SRCREV.
Install vuplus-coldboot to DUO2 image, need to WOL.
Remote control code is supported for UNO / ULTIMO / SOLO2 / DUO2 / SOLOSE / ZERO.
Remove vuplus-enigma2-vfdskin not used.
Manual fan control is supported for UNO / ULTIMO / SOLO2 / DUO2.