d2lte: don't try to use thermal-engine

Let init.qcom.thermal_conf.sh (called indirectly from init.target.rc)
correctly set qcom.thermal to thermald

Change-Id: I19d9227a952f13b79b0d040ae024e04356ea6379
Merge branch 'cm-11.0' of github.com:CyanogenMod/android_device_samsung_d2lte into HEAD