projects/RPi/patches: update RPi patches

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/RPi/linux: add some more ALSA drivers

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xf86-video-intel: update to xf86-video-intel-2.99.910

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