alsa-lib: update to alsa-lib-1.0.28

Signed-off-by: Stephan Raue <stephan@openelec.tv>
alsa-utils: update to alsa-utils-1.0.28

Signed-off-by: Stephan Raue <stephan@openelec.tv>
llvm: update to llvm-3.4.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libaacs: update to libaacs-0.7.1

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