cmake: update to cmake-3.0.0, fix installation

Signed-off-by: Stephan Raue <stephan@openelec.tv>
kmod: update to kmod-18

Signed-off-by: Stephan Raue <stephan@openelec.tv>
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>
libva-intel-driver: update to libva-intel-driver-1.3.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
mpc: update to mpc-1.0.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
gcc: update configure options (inspired by CLFS)

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