busybox: dont build applet 'powertop'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
lirc: fix xbox lirc config

Signed-off-by: Stephan Raue <stephan@openelec.tv>
evtest: move to debug tools

Signed-off-by: Stephan Raue <stephan@openelec.tv>
htop: move to debug tools

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