dlx: fix firmware symlinking

Change-Id: I4ad31b7b61c8945a6d81fb73a620575fa84a3a72
dlx: offmode charging for lollipop

* Rid ourselves of lpm.rc and instead use the on charger trigger
* Add selinux policies to go along with this

Change-Id: Ibfb4b6e8df3df7ce9f93953229ebbbe5874496b5