Build - Add SuperSU to CarbonROM [2/2]

Thanks to chinfire's "How to SU" guide,
I've managed to get SuperSU zip flashing on every
rom flash and it can easily be updated in
vendor_aicp

Also Settings part merged in from OmniRom

PS2: Don't unmount /system, it gets unmounted
     from within superu.zip flash script

Change-Id: I01f46b6132ae0060a1e41f98230d5e94d15f59c4
Signed-off-by: STELIX <ssspinni@gmail.com>