rhine: Clean up old cruft &&  Reorganize board config, package config

  Squash some cleanup from CM

Change-Id: Ibf0f00f696f45f4b675dc76f238ffd35bbc75683
Signed-off-by: Josue Rivera <prbassplayer@gmail.com>
Add init extension library for s1boot version

* Set ro.boot.s1boot to oemandroidboot.s1boot=<value> from cmdline

Change-Id: I341184820096a06fbc696ab503678f7ae705b8bb