projects/RPi/patches/linux: update RPi support patch

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xtrans: update to xtrans-1.3.5

Signed-off-by: Stephan Raue <stephan@openelec.tv>
bluez: update to bluez-5.23

Signed-off-by: Stephan Raue <stephan@openelec.tv>
v4l-utils: dont react on samsung remote control codes for KEY_POWER and KEY_SOURCE

Signed-off-by: Stephan Raue <stephan@openelec.tv>
config/version: set version to 4.2.0

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