libva: update to libva-1.4.0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libva-intel-driver: update to libva-intel-driver-1.4.0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libtirpc: update to libtirpc-0.2.5

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/RPi/patches/xbmc: update RPi support patch

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/*/linux: add Pantherlord game controller support, this fixes #3518

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