Fix video screensaver launch game controls
Fix video screensaver launch game controls

Video screensaver wasn't launching games when the Image screensaver had been set to use custom images, even if not in use.

Introduced in #673 .

Reported in https://retropie.org.uk/forum/topic/29291/video-screensaver-black-screen-with-omx-on-and-controls-not-working/
joolswills/EmulationStation,jrassa/EmulationStation,jrassa/EmulationStation,jrassa/EmulationStation,joolswills/EmulationStation,joolswills/EmulationStation,joolswills/EmulationStation,jrassa/EmulationStation