xf86-video-nvidia: update to xf86-video-nvidia-304.84

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xf86-video-nvidia-legacy: update to xf86-video-nvidia-legacy-304.84

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/ATV/linux: enable X86_ACPI_CPUFREQ support

Signed-off-by: Stephan Raue <stephan@openelec.tv>
util-linux: use vm.swappiness=10 per default

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv