Revert "lzo: update to lzo-2.07"

This reverts commit 3845d69ccd340579a9679fade00c18d15f8e13bf.
xf86-video-ati: update to xf86-video-ati-7.4.0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xorg-server: update to xorg-server-1.15.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
busybox: fix issue with not removing *.md5 files after update

Signed-off-by: Stephan Raue <stephan@openelec.tv>