xorg-video-tdfx: rebuild for xserver 1.15
xorg-video-sisusb: rebuild for xserver 1.15
xorg-video-sisimedia: rebuild for xserver 1.15
xorg-video-sis: rebuild for xserver 1.15
xorg-video-siliconmotion: rebuild for xserver 1.15
xorg-video-savage: version bump