xbmc: update to xbmc-12.2-8e4f924

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-driver: update to bcm2835-driver-89ac8f4

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-bootloader: update to bcm2835-bootloader-89ac8f4

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

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