CMHW sepolicy and tunables

Brought in selinux permissions BUT
vibrator still gets denials, so made image
permissive for now till this is sorted.

selinux patch from Dan Pasanen
http://review.cyanogenmod.org/#/c/80812/

HW tunnables from CM-11.0 branch
Author: djMesias

Change-Id: If1dad643ba6703389e25e813c9f7a55f149a029a