scripts/mkimag: use different name for uefi images
xf86-video-nvidia: update to xf86-video-nvidia-334.21
bcm2835-driver: update to bcm2835-driver-bec4bd0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bcm2835-bootloader: update to bcm2835-bootloader-bec4bd0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
scripts/mkimage: install config.txt to image

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

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4290

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4296

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