revert CLE266 to legacy modeswitch
revert CLE266 to legacy modeswitch

freedesktop-unofficial-mirror/openchrome__xf86-video-openchrome,freedesktop-unofficial-mirror/openchrome__xf86-video-openchrome,freedesktop-unofficial-mirror/openchrome__xf86-video-openchrome,freedesktop-unofficial-mirror/openchrome__xf86-video-openchrome