libressl: update to libressl-2.0.4

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libva-intel-driver: add patch to workaround against FD81447

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libva-intel-driver: better fix for FD81447

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: update to xbmc-14-1c537f5