alarm/xbmc-rbp to alarm/kodi-rbp; update to 14.0 "Helix"

I can't test right now, but I wanted to lend a helping hand in updating xbmc-rbp to 14.0 "Helix", so I wrote this by looking at [kodi-rbp-git](https://github.com/archlinuxarm/PKGBUILDs/commit/217f3204e424e977f2e981d962ee6e37c48a57f4).