Clean up for L

Change-Id: Ic005b6e58af97576e887666ab9ed6b5534740073
Enable SELinux

Change-Id: I255ffde7874d5f190d6f383665782cf9162a50b1
Import PA's init.rc from system/core/rootdir/init.rc
Big thanks to maniacx: https://github.com/maniacx/android_device_htc_leo/commit/20c00911c6211ad614ac04cd7105ef48829637e0

Change-Id: I95a7a315091d38cec9f0cbfe9bf64457da92fa8e