xf86-input-evdev: update to xf86-input-evdev-2.8.4

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libva: update to libva-1.3.1

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libva-driver-intel: update to libva-driver-intel-1.3.1

Signed-off-by: Stephan Raue <stephan@openelec.tv>
linux: update to linux-3.15-rc5
xbmc: update to xbmc-14-15822c4