RTL8192CU: update to RTL8192CU-v3.4.4_4749.20121105

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-driver: update to bcm2835-driver-73d99ed

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-bootloader: update to bcm2835-bootloader-73d99ed

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-bootloader: install start_x.elf and fixup_x.dat too

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-bootloader: set gpu memory to 100MB for 256MB boards

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

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