Mesa: update to Mesa-10.2.6

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xorg-server: remove not more needed patch after switch to package 'pkgconf'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Revert "xf86-video-intel: disable dri3"

This reverts commit b2068586fc8e18848a5f007c5d036a997bf20c0e.
new package: xbmc-texturepacker
xbmc: switch to xbmc-texturepacker
remove package: SDL_image
remove package: SDL