projects/RPi/linux: reenable ALSA drivers

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Add kernel patch for proper Ouya Controller Support

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Add keymap to make use of the newly add PS4 controller Kernel support in linux-3.15

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/*/linux: add support for dragonrise joystick